https://mathweb.ru/allsystem.html?id=349877

Умножить 111011100.011101111(2) на 101,001(2) = 100110001001.111001000111000000 Столбиком

Введите два числа и укажите их основание системы счиления:

x														1	1	1	0	1	1	1	0	0	.	0	1	1	1	0	1	1	1	1
x																				1	0	1	.	0	0	1	0	0	0	0	0	0
+															0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
														0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
													0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
												0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
											0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
										0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
									1	1	1	0	1	1	1	0	0	0	1	1	1	0	1	1	1	1
								0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
							0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

						1	1	1	0	1	1	1	0	0	0	1	1	1	0	1	1	1	1
					0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
				1	1	1	0	1	1	1	0	0	0	1	1	1	0	1	1	1	1
			1	0	0	1	1	0	0	0	1	0	0	1.	1	1	1	0	0	1	0	0	0	1	1	1	0	0	0	0	0	0

Ответ: 111011100.011101111₂ * 101.001₂ = 100110001001.111001000111000000₂