In [1]:
for i in range(20):
    print(i, i // 3)


0 0
1 0
2 0
3 1
4 1
5 1
6 2
7 2
8 2
9 3
10 3
11 3
12 4
13 4
14 4
15 5
16 5
17 5
18 6
19 6

In [2]:
for i in range(20):
    print(i, i // 3, i % 3)


0 0 0
1 0 1
2 0 2
3 1 0
4 1 1
5 1 2
6 2 0
7 2 1
8 2 2
9 3 0
10 3 1
11 3 2
12 4 0
13 4 1
14 4 2
15 5 0
16 5 1
17 5 2
18 6 0
19 6 1

In [3]:
# Compare output of this cell with previous cell.

for i in range(20):
    print(i, *divmod(i, 3))


0 0 0
1 0 1
2 0 2
3 1 0
4 1 1
5 1 2
6 2 0
7 2 1
8 2 2
9 3 0
10 3 1
11 3 2
12 4 0
13 4 1
14 4 2
15 5 0
16 5 1
17 5 2
18 6 0
19 6 1