We look at the division of 640513 by 18 
Our goal is to divide 640513 by 18.

Advancing to step 1:
18 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 18

Going ahead to step 2:
If we divide 64 by 18, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 10 after subtracting 54 from 64.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 18

Advancing to step 3:
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: 35.0
The remainder is 10 after subtracting 90 from 100.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 18

Going ahead to step 4:
If we divide 105 by 18, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 355.0
Subtract 90 from 105 to get 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 18

Let's proceed to step 5:
The number 18 fits into 151 8 times, leaving a remainder of 7.
The next digit of our result is 8. 
Result so far: 3558.0
If we take 144 away from 151, we end up with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 18

Moving on to step 6:
73 divided by 18 is 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 35584.0
Deduct 72 from 73 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
When dividing 10 by 18, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 35584.0
If we take 0 away from 10, 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.

Advancing to step 8:
If we divide 100 by 18, we get 5 and a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 35584.05
Deduct 90 from 100 and we're left 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.

Advancing to step 9:
18 can be fit into 100 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 35584.055
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.

The final outcome is 35584.055, with a leftover of 0.001.