Any number that ends with either a 5 or a 0 is divisible by 5.
23625 / 5 = 4725
360 / 5 = 72
Since the sum of the digits of 4725 is divisible by 9, 4725 is divisible by 9.
Also, since the sum of the digits of 72 is divisible by 9, 72 is divisible by 9.
4725 / 9 = 525
72 / 9 = 8
So: 23625 / 360 = 4725 / 72 = 525 / 8.
Any number that ends with either a 5 or a 0 is divisible by 5.
23625 / 5 = 4725
360 / 5 = 72
Since the sum of the digits of 4725 is divisible by 9, 4725 is divisible by 9.
Also, since the sum of the digits of 72 is divisible by 9, 72 is divisible by 9.
4725 / 9 = 525
72 / 9 = 8
So: 23625 / 360 = 4725 / 72 = 525 / 8.