We divide 811731 by 20
Our goal is to divide 811731 by 20.

Let's proceed to step 1:
If we divide 8 by 20, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 20

Let's proceed to step 2:
81 divided by 20 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 80 from 81 and we're left with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 20

Step 3:
If we divide 11 by 20, we get 0 and a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
The remainder is 11 after subtracting 0 from 11.
Grab the next digit (7) from the dividend, add it to 11, then carry on: 117 / 20

Moving on to step 4:
20 can be fit into 117 5 times, resulting in a remainder of 17.
The next digit of our result is 5. 
Result so far: 405.0
If we take 100 away from 117, we end up with 17.
Grab the next digit (3) from the dividend, add it to 17, then carry on: 173 / 20

Advancing to step 5:
When dividing 173 by 20, we get 8 with a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 4058.0
If we take 160 away from 173, we end up with 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 20

Let's proceed to step 6:
20 can be fit into 131 6 times, resulting in a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 40586.0
If we subtract 120 from 131, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
20 goes into 110 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 40586.5
Subtract 100 from 110 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
100 divided by 20 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 40586.55
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.

The final outcome is 40586.55, with a leftover of 0.0.