We look at the division of 763515 by 86 
Let's see how many times 86 fits into 763515.

Step 1:
7 divided by 86 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 86

Let's proceed to step 2:
If we divide 76 by 86, we get 0 and a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Bring next digit (3) of the dividend behind the 76 and repeat the process: 763 / 86

Step 3:
86 can be fit into 763 8 times, resulting in a remainder of 75.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 688 from 763 to get 75.
Append the next digit (5) from the dividend to 75 and continue with: 755 / 86

Moving on to step 4:
86 goes into 755 8 times with a remainder of 67.
Write down 8 as next digit of the result. 
Result so far: 88.0
If we take 688 away from 755, we end up with 67.
Take the next digit (1) from the dividend and append it to 67, then repeat: 671 / 86

Going ahead to step 5:
The number 86 fits into 671 7 times, leaving a remainder of 69.
Put 7 as the next digit of the answer. 
Result so far: 887.0
Subtract 602 from 671 to get 69.
Bring next digit (5) of the dividend behind the 69 and repeat the process: 695 / 86

Let's proceed to step 6:
86 goes into 695 8 times with a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 8878.0
Deduct 688 from 695 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.

On to step 7:
86 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 8878.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
When dividing 700 by 86, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 8878.08
Deduct 688 from 700 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
86 goes into 120 1 times with a remainder of 34.
Put 1 as the next digit of the answer. 
Result so far: 8878.081
Subtract 86 from 120 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
If we divide 340 by 86, we get 3 and a remainder of 82.
The next digit of our result is 3. 
Result so far: 8878.0813
If we take 258 away from 340, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 11:
If we divide 820 by 86, we get 9 and a remainder of 46.
The next digit of our result is 9. 
Result so far: 8878.08139
If we take 774 away from 820, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 12:
When dividing 460 by 86, we get 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 8878.081395
If we take 430 away from 460, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
When dividing 300 by 86, we get 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 8878.0813953
The remainder is 42 after subtracting 258 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
If we divide 420 by 86, we get 4 and a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 8878.08139534
Deduct 344 from 420 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final result is 8878.08139534 with a remainder of 7.6e-08.