Let's divide 86703539 by 799
We're looking to find how many times 799 goes into 86703539.

Step 1:
The number 799 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 799

Going ahead to step 2:
The number 799 fits into 86 0 times, leaving a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Grab the next digit (7) from the dividend, add it to 86, then carry on: 867 / 799

Going ahead to step 3:
The number 799 fits into 867 1 times, leaving a remainder of 68.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 68 after subtracting 799 from 867.
Append the next digit (0) from the dividend to 68 and continue with: 680 / 799

Step 4:
The number 799 fits into 680 0 times, leaving a remainder of 680.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 680, we get 680.
Append the next digit (3) from the dividend to 680 and continue with: 6803 / 799

Advancing to step 5:
The number 799 fits into 6803 8 times, leaving a remainder of 411.
Put 8 as the next digit of the answer. 
Result so far: 108.0
Subtract 6392 from 6803 to get 411.
Bring next digit (5) of the dividend behind the 411 and repeat the process: 4115 / 799

On to step 6:
The number 799 fits into 4115 5 times, leaving a remainder of 120.
The next digit of our result is 5. 
Result so far: 1085.0
Subtract 3995 from 4115 to get 120.
Fetch the next digit (3) from the dividend, attach it to 120 and continue: 1203 / 799

Moving on to step 7:
799 can be fit into 1203 1 times, resulting in a remainder of 404.
Put 1 as the next digit of the answer. 
Result so far: 10851.0
If we take 799 away from 1203, we end up with 404.
Take the next digit (9) from the dividend and append it to 404, then repeat: 4049 / 799

On to step 8:
799 goes into 4049 5 times with a remainder of 54.
The number 5 becomes the next digit in our result. 
Result so far: 108515.0
Deduct 3995 from 4049 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 9:
If we divide 540 by 799, we get 0 and a remainder of 540.
Write down 0 as next digit of the result. 
Result so far: 108515.0
If we take 0 away from 540, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 10:
The number 799 fits into 5400 6 times, leaving a remainder of 606.
Write down 6 as next digit of the result. 
Result so far: 108515.06
If we take 4794 away from 5400, we end up with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Let's proceed to step 11:
The number 799 fits into 6060 7 times, leaving a remainder of 467.
Record the quotient 7 as the next digit in the result. 
Result so far: 108515.067
Subtract 5593 from 6060 to get 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

On to step 12:
When dividing 4670 by 799, we get 5 with a remainder of 675.
The number 5 becomes the next digit in our result. 
Result so far: 108515.0675
If we subtract 3995 from 4670, we get 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Advancing to step 13:
799 can be fit into 6750 8 times, resulting in a remainder of 358.
The number 8 becomes the next digit in our result. 
Result so far: 108515.06758
Subtracting 6392 from 6750 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Going ahead to step 14:
3580 divided by 799 is 4 with a remainder of 384.
Record the quotient 4 as the next digit in the result. 
Result so far: 108515.067584
Deduct 3196 from 3580 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 15:
When dividing 3840 by 799, we get 4 with a remainder of 644.
Put 4 as the next digit of the answer. 
Result so far: 108515.0675844
The remainder is 644 after subtracting 3196 from 3840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

After the division, we end up with 108515.0675844 and a remainder of 6.44e-06.