Let's divide 7152809 by 639
We want to figure out the number of times 7152809 can be divided by 639.

Moving on to step 1:
639 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 639

Going ahead to step 2:
639 can be fit into 71 0 times, resulting in a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 639

Advancing to step 3:
639 can be fit into 715 1 times, resulting in a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 639 from 715 and we're left with 76.
Take the next digit (2) from the dividend and append it to 76, then repeat: 762 / 639

Advancing to step 4:
The number 639 fits into 762 1 times, leaving a remainder of 123.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we take 639 away from 762, we end up with 123.
Append the next digit (8) from the dividend to 123 and continue with: 1238 / 639

Let's proceed to step 5:
639 goes into 1238 1 times with a remainder of 599.
The next digit of our result is 1. 
Result so far: 111.0
Deduct 639 from 1238 and we're left with 599.
Take the next digit (0) from the dividend and append it to 599, then repeat: 5990 / 639

On to step 6:
When dividing 5990 by 639, we get 9 with a remainder of 239.
The next digit of our result is 9. 
Result so far: 1119.0
If we take 5751 away from 5990, we end up with 239.
Append the next digit (9) from the dividend to 239 and continue with: 2399 / 639

Let's proceed to step 7:
When dividing 2399 by 639, we get 3 with a remainder of 482.
Use 3 as the next digit of our solution. 
Result so far: 11193.0
Subtract 1917 from 2399 to get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Advancing to step 8:
4820 divided by 639 is 7 with a remainder of 347.
Write down 7 as next digit of the result. 
Result so far: 11193.7
If we subtract 4473 from 4820, we get 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

On to step 9:
639 can be fit into 3470 5 times, resulting in a remainder of 275.
Use 5 as the next digit of our solution. 
Result so far: 11193.75
Subtracting 3195 from 3470 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 10:
639 can be fit into 2750 4 times, resulting in a remainder of 194.
The next digit of our result is 4. 
Result so far: 11193.754
The remainder is 194 after subtracting 2556 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Moving on to step 11:
639 can be fit into 1940 3 times, resulting in a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 11193.7543
If we take 1917 away from 1940, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 12:
230 divided by 639 is 0 with a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 11193.7543
Subtracting 0 from 230 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 13:
639 goes into 2300 3 times with a remainder of 383.
Write down 3 as next digit of the result. 
Result so far: 11193.754303
If we take 1917 away from 2300, we end up with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Moving on to step 14:
When dividing 3830 by 639, we get 5 with a remainder of 635.
Record the quotient 5 as the next digit in the result. 
Result so far: 11193.7543035
If we subtract 3195 from 3830, we get 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Moving on to step 15:
639 goes into 6350 9 times with a remainder of 599.
The number 9 becomes the next digit in our result. 
Result so far: 11193.75430359
The remainder is 599 after subtracting 5751 from 6350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5990, and continue the process.

In conclusion, the division gives 11193.75430359 with a balance of 5.99e-07.