https://mathweb.ru/allsystem.html?id=328496

Умножить 110010011111,001000101000(2) на 10100000,11011(2) = 1111110111000011011.110101010001110000000000 Столбиком

Введите два числа и укажите их основание системы счиления:
x110010011111.001000101000
10100000.110110000000
+000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
110010011111001000101000
110010011111001000101000
000000000000000000000000
110010011111001000101000
110010011111001000101000
000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
000000000000000000000000
110010011111001000101000
000000000000000000000000
110010011111001000101000
1111110111000011011.110101010001110000000000
Ответ: 110010011111.0010001010002 * 10100000.110112 = 1111110111000011011.1101010100011100000000002