https://mathweb.ru/allsystem.html?id=327102

Умножить 11010001,101000101(2) на 101,001(2) = 10000110010.011000001101000000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

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

Ответ: 11010001.101000101₂ * 101.001₂ = 10000110010.011000001101000000₂