We're dividing 86419522 by 688 
Our goal is to divide 86419522 by 688.

On to step 1:
When dividing 8 by 688, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 688

Step 2:
86 divided by 688 is 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Grab the next digit (4) from the dividend, add it to 86, then carry on: 864 / 688

On to step 3:
When dividing 864 by 688, we get 1 with a remainder of 176.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 688 from 864 and we're left with 176.
Fetch the next digit (1) from the dividend, attach it to 176 and continue: 1761 / 688

Advancing to step 4:
If we divide 1761 by 688, we get 2 and a remainder of 385.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 1376 from 1761, we get 385.
Grab the next digit (9) from the dividend, add it to 385, then carry on: 3859 / 688

Moving on to step 5:
The number 688 fits into 3859 5 times, leaving a remainder of 419.
Use 5 as the next digit of our solution. 
Result so far: 125.0
Subtract 3440 from 3859 to get 419.
Append the next digit (5) from the dividend to 419 and continue with: 4195 / 688

Advancing to step 6:
688 goes into 4195 6 times with a remainder of 67.
Write down 6 as next digit of the result. 
Result so far: 1256.0
If we subtract 4128 from 4195, we get 67.
Grab the next digit (2) from the dividend, add it to 67, then carry on: 672 / 688

Moving on to step 7:
672 divided by 688 is 0 with a remainder of 672.
Put 0 as the next digit of the answer. 
Result so far: 12560.0
If we subtract 0 from 672, we get 672.
Append the next digit (2) from the dividend to 672 and continue with: 6722 / 688

Step 8:
When dividing 6722 by 688, we get 9 with a remainder of 530.
Record the quotient 9 as the next digit in the result. 
Result so far: 125609.0
Deduct 6192 from 6722 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 9:
When dividing 5300 by 688, we get 7 with a remainder of 484.
The next digit of our result is 7. 
Result so far: 125609.7
Deduct 4816 from 5300 and we're left 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.

On to step 10:
When dividing 4840 by 688, we get 7 with a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 125609.77
Subtract 4816 from 4840 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Our division results in 125609.77 with a remaining 0.024.