We look at the division of 231504 by 18 
We're looking to find how many times 18 goes into 231504.

Step 1:
18 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 18

Let's proceed to step 2:
If we divide 23 by 18, we get 1 and a remainder of 5.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 18 from 23, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 18

Let's proceed to step 3:
When dividing 51 by 18, we get 2 with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 36 from 51 leaves us with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 18

Going ahead to step 4:
When dividing 155 by 18, we get 8 with a remainder of 11.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Deduct 144 from 155 and we're left with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 18

Step 5:
The number 18 fits into 110 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 1286.0
Deduct 108 from 110 and we're left with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 18

Advancing to step 6:
18 can be fit into 24 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 12861.0
Deduct 18 from 24 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.
Put 3 as the next digit of the answer. 
Result so far: 12861.3
The remainder is 6 after subtracting 54 from 60.
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 8:
18 can be fit into 60 3 times, resulting in a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 12861.33
Subtracting 54 from 60 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.

After the division, we end up with 12861.33 and a remainder of 0.006.