https://mathweb.ru/allsystem.html?id=335026

Умножить 11111111.010000010100(2) на 11111111.01000001010(2) = 1111111010000011.000011100010000110010000 Столбиком

Введите два числа и укажите их основание системы счиления:

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

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

Ответ: 11111111.010000010100₂ * 11111111.01000001010₂ = 1111111010000011.000011100010000110010000₂