https://mathweb.ru/allsystem.html?id=338367

Умножить 111110010,011101011100001010001(2) на 1000011100,10001111010111000010(2) = 1000001110010000111.100010010111111100101010100110010011000100 Столбиком

Введите два числа и укажите их основание системы счиления:
x111110010.011101011100001010001
1000011100.100011110101110000100
+000000000000000000000000000000
000000000000000000000000000000
111110010011101011100001010001
000000000000000000000000000000
000000000000000000000000000000
000000000000000000000000000000
000000000000000000000000000000
111110010011101011100001010001
111110010011101011100001010001
111110010011101011100001010001
000000000000000000000000000000
111110010011101011100001010001
000000000000000000000000000000
111110010011101011100001010001
111110010011101011100001010001
111110010011101011100001010001
111110010011101011100001010001
000000000000000000000000000000
000000000000000000000000000000
000000000000000000000000000000
111110010011101011100001010001
000000000000000000000000000000
000000000000000000000000000000
111110010011101011100001010001
111110010011101011100001010001
111110010011101011100001010001
000000000000000000000000000000
000000000000000000000000000000
000000000000000000000000000000
000000000000000000000000000000
111110010011101011100001010001
1000001110010000111.100010010111111100101010100110010011000100
Ответ: 111110010.0111010111000010100012 * 1000011100.100011110101110000102 = 1000001110010000111.1000100101111111001010101001100100110001002