8568186 ÷ 686 
Let's see how many times 686 fits into 8568186.

On to step 1:
686 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 686

Advancing to step 2:
When dividing 85 by 686, we get 0 with a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Bring next digit (6) of the dividend behind the 85 and repeat the process: 856 / 686

Going ahead to step 3:
856 divided by 686 is 1 with a remainder of 170.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 170 after subtracting 686 from 856.
Grab the next digit (8) from the dividend, add it to 170, then carry on: 1708 / 686

Moving on to step 4:
The number 686 fits into 1708 2 times, leaving a remainder of 336.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1372 from 1708, we get 336.
Append the next digit (1) from the dividend to 336 and continue with: 3361 / 686

Moving on to step 5:
3361 divided by 686 is 4 with a remainder of 617.
Write down 4 as next digit of the result. 
Result so far: 124.0
If we take 2744 away from 3361, we end up with 617.
Append the next digit (8) from the dividend to 617 and continue with: 6178 / 686

Going ahead to step 6:
When dividing 6178 by 686, we get 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 1249.0
Subtracting 6174 from 6178 leaves us with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 686

Going ahead to step 7:
When dividing 46 by 686, we get 0 with a remainder of 46.
Use 0 as the next digit of our solution. 
Result so far: 12490.0
Deduct 0 from 46 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
If we divide 460 by 686, we get 0 and a remainder of 460.
Put 0 as the next digit of the answer. 
Result so far: 12490.0
If we subtract 0 from 460, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Step 9:
686 goes into 4600 6 times with a remainder of 484.
The next digit of our result is 6. 
Result so far: 12490.06
Subtracting 4116 from 4600 leaves us with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Let's proceed to step 10:
If we divide 4840 by 686, we get 7 and a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 12490.067
If we take 4802 away from 4840, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
When dividing 380 by 686, we get 0 with a remainder of 380.
Write down 0 as next digit of the result. 
Result so far: 12490.067
Subtracting 0 from 380 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 12:
The number 686 fits into 3800 5 times, leaving a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 12490.06705
If we subtract 3430 from 3800, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 13:
When dividing 3700 by 686, we get 5 with a remainder of 270.
Use 5 as the next digit of our solution. 
Result so far: 12490.067055
The remainder is 270 after subtracting 3430 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

The final result is 12490.067055 with a remainder of 2.7e-05.