We look at the division of 687789 by 86 
We want to divide 687789 by 86.

Let's proceed to step 1:
The number 86 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 86

Step 2:
If we divide 68 by 86, we get 0 and a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Take the next digit (7) from the dividend and append it to 68, then repeat: 687 / 86

On to step 3:
If we divide 687 by 86, we get 7 and a remainder of 85.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 602 from 687, we get 85.
Take the next digit (7) from the dividend and append it to 85, then repeat: 857 / 86

Moving on to step 4:
When dividing 857 by 86, we get 9 with a remainder of 83.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
If we subtract 774 from 857, we get 83.
Fetch the next digit (8) from the dividend, attach it to 83 and continue: 838 / 86

Advancing to step 5:
The number 86 fits into 838 9 times, leaving a remainder of 64.
The number 9 becomes the next digit in our result. 
Result so far: 799.0
Subtracting 774 from 838 leaves us with 64.
Grab the next digit (9) from the dividend, add it to 64, then carry on: 649 / 86

Step 6:
When dividing 649 by 86, we get 7 with a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 7997.0
If we take 602 away from 649, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
The number 86 fits into 470 5 times, leaving a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 7997.5
If we subtract 430 from 470, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
If we divide 400 by 86, we get 4 and a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 7997.54
Subtracting 344 from 400 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 9:
560 divided by 86 is 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 7997.546
If we take 516 away from 560, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 10:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 7997.5465
Subtract 430 from 440 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
86 goes into 100 1 times with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 7997.54651
Subtracting 86 from 100 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
140 divided by 86 is 1 with a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 7997.546511
Subtract 86 from 140 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 7997.546511 with a remaining 5.4e-06.