https://mathweb.ru/allsystem.html?id=351943

Умножить 1100110011101110111110001110101000000000(2) на 100000111(2) = 110100101000100110000001101110000110011000000000 Столбиком

Введите два числа и укажите их основание системы счиления:
x1100110011101110111110001110101000000000
100000111
+1100110011101110111110001110101000000000
1100110011101110111110001110101000000000
1100110011101110111110001110101000000000
0000000000000000000000000000000000000000
0000000000000000000000000000000000000000
0000000000000000000000000000000000000000
0000000000000000000000000000000000000000
0000000000000000000000000000000000000000
1100110011101110111110001110101000000000
110100101000100110000001101110000110011000000000
Ответ: 11001100111011101111100011101010000000002 * 1000001112 = 1101001010001001100000011011100001100110000000002