We look at the division of 133920 by 31 
We want to figure out the number of times 133920 can be divided by 31.

Moving on to step 1:
31 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 31

Step 2:
31 goes into 13 0 times with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 31

On to step 3:
If we divide 133 by 31, we get 4 and a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 9 after subtracting 124 from 133.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 31

Moving on to step 4:
99 divided by 31 is 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 43.0
The remainder is 6 after subtracting 93 from 99.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 31

Going ahead to step 5:
62 divided by 31 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 432.0
Subtracting 62 from 62 leaves us with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 31

Moving on to step 6:
If we divide 0 by 31, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4320.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
31 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4320.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 31 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4320.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 4320.0 and a remainder of 0.0.