https://mathweb.ru/allsystem.html?id=328639

Умножить 01011000.00000100.11101001.10000010(2) на 11111111.11111100.00000000.00000000(2) = 101011111010101.1100100100011101110110101111111100000000000000000000 Столбиком

Введите два числа и укажите их основание системы счиления:
x01011000.00000100.11101001.10000010
11111111.11111100.00000000.00000000
+00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
01011000000001001110100110000010
101011111010101.1100100100011101110110101111111100000000000000000000
Ответ: 01011000.00000100.11101001.100000102 * 11111111.11111100.00000000.000000002 = 101011111010101.11001001000111011101101011111111000000000000000000002