https://mathweb.ru/allsystem.html?id=126002

Умножить 11111000.0001011100(2) на 101111001.111001(2) = 10110111000110110.11010011011111000000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

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

Ответ: 11111000.0001011100₂ * 101111001.111001₂ = 10110111000110110.11010011011111000000₂