We divide 185431 by 18
We want to figure out the number of times 185431 can be divided by 18.

On to step 1:
If we divide 1 by 18, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 18

Moving on to step 2:
18 divided by 18 is 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 18 from 18 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 18

On to step 3:
5 divided by 18 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 18

Going ahead to step 4:
18 goes into 54 3 times with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 103.0
Subtract 54 from 54 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 18

Moving on to step 5:
If we divide 3 by 18, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 1030.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 18

Let's proceed to step 6:
18 can be fit into 31 1 times, resulting in a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 10301.0
If we take 18 away from 31, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
If we divide 130 by 18, we get 7 and a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 10301.7
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
40 divided by 18 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 10301.72
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
The number 18 fits into 40 2 times, leaving a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 10301.722
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 10301.722 with a remainder of 0.0004.