https://mathweb.ru/allsystem.html?id=297168

Умножить 10000000100,010100111(2) на 10,010001(2) = 100100011001.110011010010111000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

Ответ: 10000000100.010100111₂ * 10.010001₂ = 100100011001.110011010010111000₂