8751749 ÷ 686 
Our goal is to divide 8751749 by 686.

Moving on to step 1:
If we divide 8 by 686, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 686

Advancing to step 2:
686 can be fit into 87 0 times, resulting in a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Bring next digit (5) of the dividend behind the 87 and repeat the process: 875 / 686

Step 3:
The number 686 fits into 875 1 times, leaving a remainder of 189.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 686 from 875 leaves us with 189.
Append the next digit (1) from the dividend to 189 and continue with: 1891 / 686

Going ahead to step 4:
The number 686 fits into 1891 2 times, leaving a remainder of 519.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 519 after subtracting 1372 from 1891.
Fetch the next digit (7) from the dividend, attach it to 519 and continue: 5197 / 686

Let's proceed to step 5:
686 can be fit into 5197 7 times, resulting in a remainder of 395.
Write down 7 as next digit of the result. 
Result so far: 127.0
Subtract 4802 from 5197 to get 395.
Grab the next digit (4) from the dividend, add it to 395, then carry on: 3954 / 686

Moving on to step 6:
The number 686 fits into 3954 5 times, leaving a remainder of 524.
Put 5 as the next digit of the answer. 
Result so far: 1275.0
Deduct 3430 from 3954 and we're left with 524.
Append the next digit (9) from the dividend to 524 and continue with: 5249 / 686

Advancing to step 7:
686 can be fit into 5249 7 times, resulting in a remainder of 447.
Record the quotient 7 as the next digit in the result. 
Result so far: 12757.0
Deduct 4802 from 5249 and we're left with 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Going ahead to step 8:
4470 divided by 686 is 6 with a remainder of 354.
Write down 6 as next digit of the result. 
Result so far: 12757.6
Subtracting 4116 from 4470 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Moving on to step 9:
686 can be fit into 3540 5 times, resulting in a remainder of 110.
The number 5 becomes the next digit in our result. 
Result so far: 12757.65
Subtracting 3430 from 3540 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
When dividing 1100 by 686, we get 1 with a remainder of 414.
The number 1 becomes the next digit in our result. 
Result so far: 12757.651
The remainder is 414 after subtracting 686 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Step 11:
4140 divided by 686 is 6 with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 12757.6516
The remainder is 24 after subtracting 4116 from 4140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 12:
If we divide 240 by 686, we get 0 and a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 12757.6516
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 13:
686 can be fit into 2400 3 times, resulting in a remainder of 342.
Put 3 as the next digit of the answer. 
Result so far: 12757.651603
If we take 2058 away from 2400, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 14:
686 can be fit into 3420 4 times, resulting in a remainder of 676.
Write down 4 as next digit of the result. 
Result so far: 12757.6516034
If we subtract 2744 from 3420, we get 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

On to step 15:
686 goes into 6760 9 times with a remainder of 586.
Record the quotient 9 as the next digit in the result. 
Result so far: 12757.65160349
If we take 6174 away from 6760, we end up with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

After the division, we end up with 12757.65160349 and a remainder of 5.86e-07.