We divide 539099 by 20
Let's see how many times 20 fits into 539099.

Step 1:
20 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 20

Going ahead to step 2:
20 can be fit into 53 2 times, resulting in a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 40 from 53 and we're left with 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 20

Advancing to step 3:
20 goes into 139 6 times with a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Subtract 120 from 139 to get 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 20

Advancing to step 4:
20 can be fit into 190 9 times, resulting in a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 269.0
If we subtract 180 from 190, we get 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 20

Step 5:
109 divided by 20 is 5 with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 2695.0
Subtract 100 from 109 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 20

On to step 6:
If we divide 99 by 20, we get 4 and a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 26954.0
If we take 80 away from 99, 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.

Advancing to step 7:
When dividing 190 by 20, we get 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 26954.9
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.
Record the quotient 5 as the next digit in the result. 
Result so far: 26954.95
If we subtract 100 from 100, 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.

Step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 26954.95
Subtracting 0 from 0 leaves us 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 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 26954.95
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 outcome is 26954.95, with a leftover of 0.0.