We look at the division of 877539 by 20 
We want to divide 877539 by 20.

On to step 1:
20 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 20

On to step 2:
When dividing 87 by 20, we get 4 with a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 80 from 87 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 20

Moving on to step 3:
The number 20 fits into 77 3 times, leaving a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
The remainder is 17 after subtracting 60 from 77.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 20

On to step 4:
20 goes into 175 8 times with a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 438.0
If we subtract 160 from 175, we get 15.
Take the next digit (3) from the dividend and append it to 15, then repeat: 153 / 20

Advancing to step 5:
20 can be fit into 153 7 times, resulting in a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 4387.0
Subtracting 140 from 153 leaves us with 13.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 20

Advancing to step 6:
20 goes into 139 6 times with a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 43876.0
If we take 120 away from 139, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
When dividing 190 by 20, we get 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 43876.9
Subtracting 180 from 190 leaves us 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.

On to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 43876.95
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.

On to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 43876.95
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.

Going ahead to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43876.95
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 43876.95 with a remainder of 0.0.