https://mathweb.ru/allsystem.html?id=289979

Умножить 1111,100111101011(2) на 100111,100010100011(2) = 1001101001.100110110100100010100001 Столбиком

Введите два числа и укажите их основание системы счиления:

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

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

Ответ: 1111.100111101011₂ * 100111.100010100011₂ = 1001101001.100110110100100010100001₂