Exactly 15 times
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15 goes into 645 90 times
2 times with a remainder of 8
23 times.
3.95555... That is, 3 with a remainder of 43, or 3 43/45.
29 with remainder 43.
2 with remainder 35.
43/8 = 5 + 3/8, which means you can put 8 through 43 five whole times.
43 times with a remainder of 5... and it's 'does' - not 'dose' !
43 times with a remainder of 0 (for primary school only)
3, because 30/3=10 or 10x3=30. If you wanted to know how many times ten would go into 430 (I have the wrong keyboard for doing a division symbol) the answer is 43.
The factors of 1290 are 1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, and 1290 itself.
43 ÷ 3 = 14 with remainder 1