Let's divide 79006435 by 639
Our goal is to divide 79006435 by 639.

Going ahead to step 1:
The number 639 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 639

Step 2:
When dividing 79 by 639, we get 0 with a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 79 leaves us with 79.
Append the next digit (0) from the dividend to 79 and continue with: 790 / 639

On to step 3:
If we divide 790 by 639, we get 1 and a remainder of 151.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 639 from 790 and we're left with 151.
Fetch the next digit (0) from the dividend, attach it to 151 and continue: 1510 / 639

Advancing to step 4:
1510 divided by 639 is 2 with a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 1278 from 1510 leaves us with 232.
Grab the next digit (6) from the dividend, add it to 232, then carry on: 2326 / 639

Advancing to step 5:
The number 639 fits into 2326 3 times, leaving a remainder of 409.
Put 3 as the next digit of the answer. 
Result so far: 123.0
If we take 1917 away from 2326, we end up with 409.
Fetch the next digit (4) from the dividend, attach it to 409 and continue: 4094 / 639

Moving on to step 6:
The number 639 fits into 4094 6 times, leaving a remainder of 260.
Write down 6 as next digit of the result. 
Result so far: 1236.0
If we take 3834 away from 4094, we end up with 260.
Grab the next digit (3) from the dividend, add it to 260, then carry on: 2603 / 639

Let's proceed to step 7:
2603 divided by 639 is 4 with a remainder of 47.
Write down 4 as next digit of the result. 
Result so far: 12364.0
Subtract 2556 from 2603 to get 47.
Include the next digit (5) from the dividend after 47, then repeat: 475 / 639

Let's proceed to step 8:
639 goes into 475 0 times with a remainder of 475.
Use 0 as the next digit of our solution. 
Result so far: 123640.0
If we take 0 away from 475, we end up with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Let's proceed to step 9:
639 goes into 4750 7 times with a remainder of 277.
Record the quotient 7 as the next digit in the result. 
Result so far: 123640.7
Deduct 4473 from 4750 and we're left with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Let's proceed to step 10:
639 goes into 2770 4 times with a remainder of 214.
Write down 4 as next digit of the result. 
Result so far: 123640.74
Subtracting 2556 from 2770 leaves us with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Going ahead to step 11:
639 goes into 2140 3 times with a remainder of 223.
The number 3 becomes the next digit in our result. 
Result so far: 123640.743
Subtract 1917 from 2140 to get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Advancing to step 12:
2230 divided by 639 is 3 with a remainder of 313.
Record the quotient 3 as the next digit in the result. 
Result so far: 123640.7433
The remainder is 313 after subtracting 1917 from 2230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

The final outcome is 123640.7433, with a leftover of 0.00313.