Dividing a integer equally in X parts

I'm looking for a efficient way in PHP to divide a number in equal part. Number will always be integer (no float).

Let's say that I have an array $hours with values from "1" to "24" ($hours['1'], etc) and a variable $int containing an integer. What I want to acheive is spreading the value of $int equally in 24 parts so I can assing the value to each corresponding array entries. (Should the number be odd, the remaining would be added to the last or first values in the 24).

Regards,

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