639007 divided by 18 
We want to figure out the number of times 639007 can be divided by 18.

Advancing to step 1:
When dividing 6 by 18, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 18

Let's proceed to step 2:
18 can be fit into 63 3 times, resulting in a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 9 after subtracting 54 from 63.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 18

Let's proceed to step 3:
When dividing 99 by 18, we get 5 with a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
If we take 90 away from 99, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 18

Going ahead to step 4:
When dividing 90 by 18, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 355.0
The remainder is 0 after subtracting 90 from 90.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 18

On to step 5:
0 divided by 18 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3550.0
If we take 0 away from 0, we end up with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 18

On to step 6:
If we divide 7 by 18, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 35500.0
Subtract 0 from 7 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
If we divide 70 by 18, we get 3 and a remainder of 16.
The next digit of our result is 3. 
Result so far: 35500.3
Subtracting 54 from 70 leaves us 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 8:
If we divide 160 by 18, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 35500.38
Subtracting 144 from 160 leaves us 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.

Advancing to step 9:
If we divide 160 by 18, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 35500.388
Subtracting 144 from 160 leaves us 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 35500.388 with a remaining 0.0016.