We look at the division of 108172 by 20 
Our goal is to divide 108172 by 20.

Going ahead to step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 20

Step 2:
10 divided by 20 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Fetch the next digit (8) from the dividend, attach it to 10 and continue: 108 / 20

Step 3:
108 divided by 20 is 5 with a remainder of 8.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 100 from 108 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 20

Going ahead to step 4:
20 goes into 81 4 times with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtract 80 from 81 to get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 20

Step 5:
20 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 540.0
If we take 0 away from 17, we end up with 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 20

Let's proceed to step 6:
If we divide 172 by 20, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 5408.0
The remainder is 12 after subtracting 160 from 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
If we divide 120 by 20, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 5408.6
Deduct 120 from 120 and we're left 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.

Going ahead to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 5408.6
Subtracting 0 from 0 leaves us 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.

Step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 5408.6
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.

The final result is 5408.6 with a remainder of 0.0.