Let's divide 518135 by 20
We want to figure out the number of times 518135 can be divided by 20.

Step 1:
5 divided by 20 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 20

On to step 2:
The number 20 fits into 51 2 times, leaving a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 40 from 51 to get 11.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 20

Step 3:
When dividing 118 by 20, we get 5 with a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtracting 100 from 118 leaves us with 18.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 20

Moving on to step 4:
When dividing 181 by 20, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtracting 180 from 181 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 20

Moving on to step 5:
20 goes into 13 0 times with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 2590.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 20

On to step 6:
135 divided by 20 is 6 with a remainder of 15.
The next digit of our result is 6. 
Result so far: 25906.0
Deduct 120 from 135 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
20 can be fit into 150 7 times, resulting in a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 25906.7
Subtract 140 from 150 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.

Going ahead to step 8:
20 goes into 100 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 25906.75
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.

Going ahead to 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: 25906.75
If we take 0 away from 0, 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.

Step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 25906.75
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.

The final outcome is 25906.75, with a leftover of 0.0.