To determine how many times 3 goes into 33, you would perform division. 33 divided by 3 equals 11. Therefore, the number 3 goes into 33 exactly 11 times.
5 3's go into 16 with a remainder of 1.
20
18
5 of them with a remainder of 1
1,000 x 3 = 3,000
51/3 is 5.3333333333333333333333 (the 3s go on forever.)
32
18
75 ÷ 3 = 25
28 3s
8 of them, with 2 left over.