We look at the division of 261577 by 20 
Let's see how many times 20 fits into 261577.

On to step 1:
When dividing 2 by 20, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 20

Advancing to step 2:
20 can be fit into 26 1 times, resulting in a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 20 from 26 leaves us with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 20

Moving on to step 3:
When dividing 61 by 20, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 60 from 61 to get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 20

Moving on to step 4:
20 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 130.0
Subtract 0 from 15 to get 15.
Grab the next digit (7) from the dividend, add it to 15, then carry on: 157 / 20

Step 5:
If we divide 157 by 20, we get 7 and a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 1307.0
If we take 140 away from 157, we end up with 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 20

Step 6:
The number 20 fits into 177 8 times, leaving a remainder of 17.
The next digit of our result is 8. 
Result so far: 13078.0
The remainder is 17 after subtracting 160 from 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
If we divide 170 by 20, we get 8 and a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 13078.8
The remainder is 10 after subtracting 160 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 20 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 13078.85
The remainder is 0 after subtracting 100 from 100.
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:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13078.85
Deduct 0 from 0 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.

Moving on 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: 13078.85
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.

The final result is 13078.85 with a remainder of 0.0.