Well, honey, when you divide 17 by 5, you get 3 with a remainder of 2. It's like trying to split a Pizza between 5 people and having 2 slices left over - not enough for another person, but hey, someone might snag them anyway. Math can be a real party pooper sometimes, but hey, at least now you know the deal.
3.4
5.6667
3.4
17.1562
11.2941
92.2941
16.2941
If x ≡ 39 mod 357 then: x = 357k + 39 for some integer k. Now 357 = 21×17, and 39 = 2×17+5 → x = 21×17×k + 2×17 + 5 → x = 17(21k + 2) + 5 → x = 17m + 5 where m = 21k + 2 (is an integer) → x ≡ 5 mod 17 → the remainder when the number is divided by 17 is 5.
5.6667
3.2941
5.7647
5.6667