686824 ÷ 77 
Our goal is to divide 686824 by 77.

On to step 1:
The number 77 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 77

Advancing to step 2:
If we divide 68 by 77, we get 0 and a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Fetch the next digit (6) from the dividend, attach it to 68 and continue: 686 / 77

Step 3:
77 can be fit into 686 8 times, resulting in a remainder of 70.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 616 from 686, we get 70.
Bring next digit (8) of the dividend behind the 70 and repeat the process: 708 / 77

Advancing to step 4:
If we divide 708 by 77, we get 9 and a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 89.0
Deduct 693 from 708 and we're left with 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 77

On to step 5:
77 can be fit into 152 1 times, resulting in a remainder of 75.
The number 1 becomes the next digit in our result. 
Result so far: 891.0
If we take 77 away from 152, we end up with 75.
Append the next digit (4) from the dividend to 75 and continue with: 754 / 77

Going ahead to step 6:
When dividing 754 by 77, we get 9 with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 8919.0
If we subtract 693 from 754, 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.

On to step 7:
77 can be fit into 610 7 times, resulting in a remainder of 71.
Put 7 as the next digit of the answer. 
Result so far: 8919.7
Subtracting 539 from 610 leaves us 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.

Going ahead to step 8:
The number 77 fits into 710 9 times, leaving a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 8919.79
The remainder is 17 after subtracting 693 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 9:
77 can be fit into 170 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 8919.792
Subtracting 154 from 170 leaves us 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.

On to step 10:
77 can be fit into 160 2 times, resulting in a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 8919.7922
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.

The final outcome is 8919.7922, with a leftover of 6e-05.