https://mathweb.ru/umnojenie-stolbikom.html?id=25578

Умножить 900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009876543567865421345678976543456789087654300 на 999999999999999999999999999999999999999999999999999998754678675432456754321234565435678976799999000 = 899999999999999999999999999999999999999999999999999998879210807889211078889111108892111079120008976543567865421345678976543456789087654299999999999987700529681916784043387119911282912455631387845187373027314684856625587479331152345700000 Столбиком

Введите два числа: первый множитель и второй множитель.
умножить на
Решение:
x900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009876543567865421345678976543456789087654300
999999999999999999999999999999999999999999999999999998754678675432456754321234565435678976799999000
+000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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8100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000088888892110788792111110788891111101788888700
8100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000088888892110788792111110788891111101788888700
8100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000088888892110788792111110788891111101788888700
6300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000069135804975057949419752835804197523613580100
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6300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000069135804975057949419752835804197523613580100
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3600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000039506174271461685382715906173827156350617200
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6300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000069135804975057949419752835804197523613580100
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8100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000088888892110788792111110788891111101788888700
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8100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000088888892110788792111110788891111101788888700
899999999999999999999999999999999999999999999999999998879210807889211078889111108892111079120008976543567865421345678976543456789087654299999999999987700529681916784043387119911282912455631387845187373027314684856625587479331152345700000
Ответ: 900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009876543567865421345678976543456789087654300×999999999999999999999999999999999999999999999999999998754678675432456754321234565435678976799999000 = 899999999999999999999999999999999999999999999999999998879210807889211078889111108892111079120008976543567865421345678976543456789087654299999999999987700529681916784043387119911282912455631387845187373027314684856625587479331152345700000