https://mathweb.ru/allsystem.html?id=124196

Умножить 10000000000000000000(3) на 1000000000000000000000(3) = 10000000000000000000000000000000000000000 Столбиком

Введите два числа и укажите их основание системы счиления:
x10000000000000000000
1000000000000000000000
+00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
10000000000000000000
10000000000000000000000000000000000000000
Ответ: 100000000000000000003 * 10000000000000000000003 = 100000000000000000000000000000000000000003