18000000*5000000_ Mathematical calculation

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    Overview: 1 questions will be solved this time.Among them
           ☆1 integer calculations

[1/1 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 18000000*5000000
    Solution:
    18000000*5000000 = 90000000000000
    Column vertical calculation:

							1	8	0	0	0	0	0	0
✖								5	0	0	0	0	0	0

							0	0	0	0	0	0	0	0
						0	0	0	0	0	0	0	0
					0	0	0	0	0	0	0	0
				0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0
	9	0	0	0	0	0	0	0

	9	0	0	0	0	0	0	0	0	0	0	0	0	0

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							1	8	0	0	0	0	0	0
✖								5	0	0	0	0	0	0

							0	0	0	0	0	0	0	0
						0	0	0	0	0	0	0	0
					0	0	0	0	0	0	0	0
				0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0
	9	0	0	0	0	0	0	0

	9	0	0	0	0	0	0	0	0	0	0	0	0	0

							1	8	0	0	0	0	0	0
✖								5	0	0	0	0	0	0

							0	0	0	0	0	0	0	0
						0	0	0	0	0	0	0	0
					0	0	0	0	0	0	0	0
				0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0
	9	0	0	0	0	0	0	0

	9	0	0	0	0	0	0	0	0	0	0	0	0	0

							1	8	0	0	0	0	0	0
✖								5	0	0	0	0	0	0

							0	0	0	0	0	0	0	0
						0	0	0	0	0	0	0	0
					0	0	0	0	0	0	0	0
				0	0	0	0	0	0	0	0
			0	0	0	0	0	0	0	0
		0	0	0	0	0	0	0	0
	9	0	0	0	0	0	0	0

	9	0	0	0	0	0	0	0	0	0	0	0	0	0