https://mathweb.ru/allsystem.html?id=309142

Умножить 11100101.0011100101(2) на 10101(2) = 1001011001101.10110010010000000000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

Ответ: 11100101.0011100101₂ * 10101₂ = 1001011001101.10110010010000000000₂