We're dividing 20130 by 18 
We want to divide 20130 by 18.

Step 1:
18 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 18

On to step 2:
When dividing 20 by 18, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 18 from 20 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 18

Step 3:
When dividing 21 by 18, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 18 from 21, we get 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 18

Advancing to step 4:
18 can be fit into 33 1 times, resulting in a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 111.0
If we take 18 away from 33, we end up with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 18

On to step 5:
When dividing 150 by 18, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 1118.0
Subtracting 144 from 150 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 6:
60 divided by 18 is 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 1118.3
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
18 goes into 60 3 times with a remainder of 6.
The next digit of our result is 3. 
Result so far: 1118.33
Subtract 54 from 60 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Our division results in 1118.33 with a remaining 0.006.