We're dividing 31639420 by 18 
Our goal is to divide 31639420 by 18.

On to step 1:
3 divided by 18 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 18

Step 2:
The number 18 fits into 31 1 times, leaving a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 13 after subtracting 18 from 31.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 18

On to step 3:
136 divided by 18 is 7 with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 126 from 136 leaves us with 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 18

Moving on to step 4:
When dividing 103 by 18, we get 5 with a remainder of 13.
The number 5 becomes the next digit in our result. 
Result so far: 175.0
If we subtract 90 from 103, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 18

On to step 5:
18 can be fit into 139 7 times, resulting in a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 1757.0
Deduct 126 from 139 and we're left with 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 18

Let's proceed to step 6:
18 can be fit into 134 7 times, resulting in a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 17577.0
If we subtract 126 from 134, we get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 18

Step 7:
18 goes into 82 4 times with a remainder of 10.
The next digit of our result is 4. 
Result so far: 175774.0
Subtracting 72 from 82 leaves us with 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 18

Moving on to step 8:
If we divide 100 by 18, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1757745.0
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
When dividing 100 by 18, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 1757745.5
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
When dividing 100 by 18, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 1757745.55
If we subtract 90 from 100, we 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.

After the division, we end up with 1757745.55 and a remainder of 0.01.