https://mathweb.ru/allsystem.html?id=339011

Умножить 1001001(2) на 0.010101000111(2) = 0011000.000100111111000000000000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

Ответ: 1001001₂ * 0.010101000111₂ = 0011000.000100111111000000000000₂