We look at the division of 20855539 by 489 
Let's see how many times 489 fits into 20855539.

Step 1:
The number 489 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 489

Advancing to step 2:
489 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Fetch the next digit (8) from the dividend, attach it to 20 and continue: 208 / 489

Moving on to step 3:
When dividing 208 by 489, we get 0 with a remainder of 208.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 208, we end up with 208.
Grab the next digit (5) from the dividend, add it to 208, then carry on: 2085 / 489

Moving on to step 4:
489 goes into 2085 4 times with a remainder of 129.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 1956 away from 2085, we end up with 129.
Append the next digit (5) from the dividend to 129 and continue with: 1295 / 489

Going ahead to step 5:
489 goes into 1295 2 times with a remainder of 317.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtracting 978 from 1295 leaves us with 317.
Bring next digit (5) of the dividend behind the 317 and repeat the process: 3175 / 489

Moving on to step 6:
489 goes into 3175 6 times with a remainder of 241.
Write down 6 as next digit of the result. 
Result so far: 426.0
The remainder is 241 after subtracting 2934 from 3175.
Include the next digit (3) from the dividend after 241, then repeat: 2413 / 489

Step 7:
489 goes into 2413 4 times with a remainder of 457.
The next digit of our result is 4. 
Result so far: 4264.0
Subtracting 1956 from 2413 leaves us with 457.
Grab the next digit (9) from the dividend, add it to 457, then carry on: 4579 / 489

Let's proceed to step 8:
489 goes into 4579 9 times with a remainder of 178.
Record the quotient 9 as the next digit in the result. 
Result so far: 42649.0
The remainder is 178 after subtracting 4401 from 4579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 9:
If we divide 1780 by 489, we get 3 and a remainder of 313.
Write down 3 as next digit of the result. 
Result so far: 42649.3
Deduct 1467 from 1780 and we're left with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Going ahead to step 10:
3130 divided by 489 is 6 with a remainder of 196.
Write down 6 as next digit of the result. 
Result so far: 42649.36
The remainder is 196 after subtracting 2934 from 3130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 11:
489 goes into 1960 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 42649.364
Deduct 1956 from 1960 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
489 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 42649.364
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
If we divide 400 by 489, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 42649.364
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Our division results in 42649.364 with a remaining 0.0004.