We're dividing 1808051 by 639 
We want to figure out the number of times 1808051 can be divided by 639.

Moving on to step 1:
When dividing 1 by 639, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 639

Moving on to step 2:
If we divide 18 by 639, we get 0 and a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 639

Going ahead to step 3:
639 goes into 180 0 times with a remainder of 180.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 180 and we're left with 180.
Include the next digit (8) from the dividend after 180, then repeat: 1808 / 639

Advancing to step 4:
If we divide 1808 by 639, we get 2 and a remainder of 530.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 530 after subtracting 1278 from 1808.
Grab the next digit (0) from the dividend, add it to 530, then carry on: 5300 / 639

On to step 5:
639 goes into 5300 8 times with a remainder of 188.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we subtract 5112 from 5300, we get 188.
Bring next digit (5) of the dividend behind the 188 and repeat the process: 1885 / 639

Step 6:
639 can be fit into 1885 2 times, resulting in a remainder of 607.
Record the quotient 2 as the next digit in the result. 
Result so far: 282.0
If we take 1278 away from 1885, we end up with 607.
Take the next digit (1) from the dividend and append it to 607, then repeat: 6071 / 639

Step 7:
When dividing 6071 by 639, we get 9 with a remainder of 320.
Write down 9 as next digit of the result. 
Result so far: 2829.0
The remainder is 320 after subtracting 5751 from 6071.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 8:
3200 divided by 639 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 2829.5
Deduct 3195 from 3200 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
639 goes into 50 0 times with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 2829.5
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 10:
When dividing 500 by 639, we get 0 with a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 2829.5
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

In conclusion, the division gives 2829.5 with a balance of 0.05.