We look at the division of 100745 by 20 
We're looking to find how many times 20 goes into 100745.

Advancing to step 1:
If we divide 1 by 20, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 20

On to step 2:
20 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 20

Going ahead to step 3:
100 divided by 20 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 0 after subtracting 100 from 100.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 20

Step 4:
When dividing 7 by 20, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 20

Step 5:
20 goes into 74 3 times with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 503.0
Subtracting 60 from 74 leaves us with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 20

Advancing to step 6:
20 goes into 145 7 times with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 5037.0
The remainder is 5 after subtracting 140 from 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
20 can be fit into 50 2 times, resulting in a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 5037.2
If we take 40 away from 50, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5037.25
If we take 100 away from 100, 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.

Step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5037.25
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 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5037.25
The remainder is 0 after subtracting 0 from 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 5037.25 with a remainder of 0.0.