We divide 639709 by 18
Let's see how many times 18 fits into 639709.

Going ahead to step 1:
When dividing 6 by 18, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 18

On to step 2:
18 goes into 63 3 times with a remainder of 9.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 54 from 63 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 18

Let's proceed to step 3:
18 can be fit into 99 5 times, resulting in a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtract 90 from 99 to get 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 18

Advancing to step 4:
When dividing 97 by 18, we get 5 with a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 355.0
Deduct 90 from 97 and we're left with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 18

Moving on to step 5:
70 divided by 18 is 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 3553.0
The remainder is 16 after subtracting 54 from 70.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 18

Moving on to step 6:
18 goes into 169 9 times with a remainder of 7.
The next digit of our result is 9. 
Result so far: 35539.0
Deduct 162 from 169 and we're left 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 7:
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: 35539.3
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.

Advancing to step 8:
18 can be fit into 160 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 35539.38
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
When dividing 160 by 18, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 35539.388
If we subtract 144 from 160, we 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.

After the division, we end up with 35539.388 and a remainder of 0.0016.