12285/525 = 23.4
525 goes into 1228 2 times, and 1228 - 1050 = 178.
525 goes into 1785 3 times, and 1785 - 1575 = 210.
525 goes into 2100 4 times, and 2100 - 2100 = 0, which means the number’s decimals have stopped.
i don’t know if i explained it in a way you can understand, sorry if i didn’t.
