Let's divide 86783984 by 688
We're looking to find how many times 688 goes into 86783984.

Let's proceed 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
Subtract 0 from 8 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 688

Step 2:
688 can be fit into 86 0 times, resulting in a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Take the next digit (7) from the dividend and append it to 86, then repeat: 867 / 688

On to step 3:
867 divided by 688 is 1 with a remainder of 179.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 688 from 867 leaves us with 179.
Take the next digit (8) from the dividend and append it to 179, then repeat: 1798 / 688

Step 4:
When dividing 1798 by 688, we get 2 with a remainder of 422.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 1376 from 1798 to get 422.
Take the next digit (3) from the dividend and append it to 422, then repeat: 4223 / 688

On to step 5:
If we divide 4223 by 688, we get 6 and a remainder of 95.
Record the quotient 6 as the next digit in the result. 
Result so far: 126.0
If we take 4128 away from 4223, we end up with 95.
Grab the next digit (9) from the dividend, add it to 95, then carry on: 959 / 688

Let's proceed to step 6:
If we divide 959 by 688, we get 1 and a remainder of 271.
Write down 1 as next digit of the result. 
Result so far: 1261.0
Subtracting 688 from 959 leaves us with 271.
Grab the next digit (8) from the dividend, add it to 271, then carry on: 2718 / 688

Step 7:
If we divide 2718 by 688, we get 3 and a remainder of 654.
The number 3 becomes the next digit in our result. 
Result so far: 12613.0
Subtract 2064 from 2718 to get 654.
Grab the next digit (4) from the dividend, add it to 654, then carry on: 6544 / 688

Let's proceed to step 8:
6544 divided by 688 is 9 with a remainder of 352.
Record the quotient 9 as the next digit in the result. 
Result so far: 126139.0
Deduct 6192 from 6544 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Moving on to step 9:
When dividing 3520 by 688, we get 5 with a remainder of 80.
The next digit of our result is 5. 
Result so far: 126139.5
Deduct 3440 from 3520 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 10:
If we divide 800 by 688, we get 1 and a remainder of 112.
Put 1 as the next digit of the answer. 
Result so far: 126139.51
If we take 688 away from 800, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 11:
688 goes into 1120 1 times with a remainder of 432.
Use 1 as the next digit of our solution. 
Result so far: 126139.511
Subtract 688 from 1120 to get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

The quotient of the division is 126139.511, and the remainder is 0.0432.