We divide 53031985 by 18
We want to figure out the number of times 53031985 can be divided by 18.

Let's proceed to step 1:
The number 18 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 18

On to step 2:
The number 18 fits into 53 2 times, leaving a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 36 from 53 to get 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 18

On to step 3:
18 can be fit into 170 9 times, resulting in a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
If we subtract 162 from 170, we get 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 18

On to step 4:
If we divide 83 by 18, we get 4 and a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 294.0
If we subtract 72 from 83, we get 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 18

Let's proceed to step 5:
When dividing 111 by 18, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 2946.0
Subtracting 108 from 111 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 18

Step 6:
39 divided by 18 is 2 with a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 29462.0
Deduct 36 from 39 and we're left with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 18

Step 7:
18 can be fit into 38 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 294622.0
Subtract 36 from 38 to get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 18

Moving on to step 8:
The number 18 fits into 25 1 times, leaving a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 2946221.0
Subtracting 18 from 25 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
When dividing 70 by 18, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 2946221.3
If we take 54 away from 70, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 10:
If we divide 160 by 18, we get 8 and a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 2946221.38
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 2946221.388
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 2946221.388 with a remaining 0.0016.