https://mathweb.ru/allsystem.html?id=128623

Умножить 1000,001100110011(2) на 101011(2) = 101100000.100110010001000000000000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

Ответ: 1000.001100110011₂ * 101011₂ = 101100000.100110010001000000000000₂