Step 1. Set up the long division.
__
33|4
Step 2. Calculate 40 ÷ 33, which is 1 with a remainder of 7.
0.1
__
33|4.
3.3
_ 7
Step 3. Bring down 0, so that 70 is large enough to be divided by 33
0.1 _____33|4. 3.3 _ 7 0
Step 4. Calculate 70 ÷ 33, which is 2 with the remainder of 4.
0.1 2 _____33|4. 3.3 _ 7 0
6 6
_____
4
Step 5. Bring down 0, so that 40 is large enough to be divided by 33.
0.1 2
6 6
_____
4 0
Step 6. Calculate 40 ÷ 33, which is 1 with the remainder of 7.
0.1 2 1
6 6
_____
4 0
3 3
_____
7
Step 7. Bring down the 0, so that 70 is large enough to be divided by 33.
0.1 2 1
6 6
_____
4 0
3 3
_____
7 0
Step 8. Calculate 70 ÷ 33, which is 2 with the remainder of 4.
0.1 2 1 2
6 6
_____
4 0
3 3
_____
7 0
6 6
______
4
Step 9. Therefore, 4 ÷ 33 = 0.1212
Done!