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           ☆1 integer calculations

[1/1 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 5363222357*18645507
    Solution:
    5363222357*18645507 = 99999999999999999
    Column vertical calculation:

													5	3	6	3	2	2	2	3	5	7
✖															1	8	6	4	5	5	0	7
												3	7	5	4	2	5	5	6	4	9	9
												0	0	0	0	0	0	0	0	0	0
										2	6	8	1	6	1	1	1	7	8	5
									2	6	8	1	6	1	1	1	7	8	5
								2	1	4	5	2	8	8	9	4	2	8
							3	2	1	7	9	3	3	4	1	4	2
						4	2	9	0	5	7	7	8	8	5	6
						5	3	6	3	2	2	2	3	5	7
						9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9

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