We divide 76399909 by 86
Our goal is to divide 76399909 by 86.

Let's proceed to step 1:
The number 86 fits into 7 0 times, leaving 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.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 86

Let's proceed to step 2:
86 goes into 76 0 times with a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Grab the next digit (3) from the dividend, add it to 76, then carry on: 763 / 86

On to step 3:
If we divide 763 by 86, we get 8 and a remainder of 75.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 688 from 763 to get 75.
Take the next digit (9) from the dividend and append it to 75, then repeat: 759 / 86

On to step 4:
The number 86 fits into 759 8 times, leaving a remainder of 71.
Write down 8 as next digit of the result. 
Result so far: 88.0
Subtract 688 from 759 to get 71.
Include the next digit (9) from the dividend after 71, then repeat: 719 / 86

Moving on to step 5:
86 can be fit into 719 8 times, resulting in a remainder of 31.
Use 8 as the next digit of our solution. 
Result so far: 888.0
Subtract 688 from 719 to get 31.
Append the next digit (9) from the dividend to 31 and continue with: 319 / 86

Moving on to step 6:
If we divide 319 by 86, we get 3 and a remainder of 61.
Record the quotient 3 as the next digit in the result. 
Result so far: 8883.0
Subtract 258 from 319 to get 61.
Grab the next digit (0) from the dividend, add it to 61, then carry on: 610 / 86

Going ahead to step 7:
610 divided by 86 is 7 with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 88837.0
Deduct 602 from 610 and we're left with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 86

Moving on to step 8:
The number 86 fits into 89 1 times, leaving a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 888371.0
The remainder is 3 after subtracting 86 from 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 9:
When dividing 30 by 86, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 888371.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
When dividing 300 by 86, we get 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 888371.03
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 11:
When dividing 420 by 86, we get 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 888371.034
The remainder is 76 after subtracting 344 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 12:
The number 86 fits into 760 8 times, leaving a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 888371.0348
If we subtract 688 from 760, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 13:
If we divide 720 by 86, we get 8 and a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 888371.03488
Deduct 688 from 720 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 888371.03488 with a remaining 3.2e-05.