We're dividing 8506426 by 688 
We're looking to find how many times 688 goes into 8506426.

On to step 1:
688 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 688

Advancing to step 2:
When dividing 85 by 688, we get 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Include the next digit (0) from the dividend after 85, then repeat: 850 / 688

Moving on to step 3:
850 divided by 688 is 1 with a remainder of 162.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 688 from 850 to get 162.
Grab the next digit (6) from the dividend, add it to 162, then carry on: 1626 / 688

Going ahead to step 4:
The number 688 fits into 1626 2 times, leaving a remainder of 250.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1376 from 1626 leaves us with 250.
Grab the next digit (4) from the dividend, add it to 250, then carry on: 2504 / 688

Moving on to step 5:
2504 divided by 688 is 3 with a remainder of 440.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
Subtracting 2064 from 2504 leaves us with 440.
Append the next digit (2) from the dividend to 440 and continue with: 4402 / 688

Moving on to step 6:
When dividing 4402 by 688, we get 6 with a remainder of 274.
Write down 6 as next digit of the result. 
Result so far: 1236.0
If we take 4128 away from 4402, we end up with 274.
Take the next digit (6) from the dividend and append it to 274, then repeat: 2746 / 688

On to step 7:
The number 688 fits into 2746 3 times, leaving a remainder of 682.
Record the quotient 3 as the next digit in the result. 
Result so far: 12363.0
Subtracting 2064 from 2746 leaves us with 682.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6820, and continue the process.

Going ahead to step 8:
The number 688 fits into 6820 9 times, leaving a remainder of 628.
Use 9 as the next digit of our solution. 
Result so far: 12363.9
Subtract 6192 from 6820 to get 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Let's proceed to step 9:
When dividing 6280 by 688, we get 9 with a remainder of 88.
The next digit of our result is 9. 
Result so far: 12363.99
Subtracting 6192 from 6280 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

After the division, we end up with 12363.99 and a remainder of 0.088.