We look at the division of 686439 by 77 
We want to divide 686439 by 77.

Let's proceed to step 1:
If we divide 6 by 77, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 77

On to step 2:
77 goes into 68 0 times with a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Append the next digit (6) from the dividend to 68 and continue with: 686 / 77

Going ahead to step 3:
If we divide 686 by 77, we get 8 and a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 616 from 686, we get 70.
Bring next digit (4) of the dividend behind the 70 and repeat the process: 704 / 77

Going ahead to step 4:
The number 77 fits into 704 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
Subtracting 693 from 704 leaves us with 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 77

Let's proceed to step 5:
If we divide 113 by 77, we get 1 and a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 891.0
If we subtract 77 from 113, we get 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 77

Step 6:
77 goes into 369 4 times with a remainder of 61.
Write down 4 as next digit of the result. 
Result so far: 8914.0
If we subtract 308 from 369, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 7:
610 divided by 77 is 7 with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 8914.7
Deduct 539 from 610 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 8:
When dividing 710 by 77, we get 9 with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 8914.79
If we subtract 693 from 710, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 9:
170 divided by 77 is 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 8914.792
Deduct 154 from 170 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 10:
If we divide 160 by 77, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 8914.7922
Deduct 154 from 160 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Our division results in 8914.7922 with a remaining 6e-05.