86704532 ÷ 864 
Our goal is to divide 86704532 by 864.

Advancing to step 1:
If we divide 8 by 864, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 864

On to step 2:
864 goes into 86 0 times with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Bring next digit (7) of the dividend behind the 86 and repeat the process: 867 / 864

Moving on to step 3:
867 divided by 864 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 864 from 867 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 864

Advancing to step 4:
864 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 30 and we're left with 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 864

Advancing to step 5:
If we divide 304 by 864, we get 0 and a remainder of 304.
The next digit of our result is 0. 
Result so far: 100.0
Subtract 0 from 304 to get 304.
Take the next digit (5) from the dividend and append it to 304, then repeat: 3045 / 864

Advancing to step 6:
If we divide 3045 by 864, we get 3 and a remainder of 453.
Put 3 as the next digit of the answer. 
Result so far: 1003.0
Deduct 2592 from 3045 and we're left with 453.
Grab the next digit (3) from the dividend, add it to 453, then carry on: 4533 / 864

Step 7:
If we divide 4533 by 864, we get 5 and a remainder of 213.
Write down 5 as next digit of the result. 
Result so far: 10035.0
If we subtract 4320 from 4533, we get 213.
Grab the next digit (2) from the dividend, add it to 213, then carry on: 2132 / 864

Moving on to step 8:
864 goes into 2132 2 times with a remainder of 404.
Put 2 as the next digit of the answer. 
Result so far: 100352.0
Deduct 1728 from 2132 and we're left with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Moving on to step 9:
864 goes into 4040 4 times with a remainder of 584.
Record the quotient 4 as the next digit in the result. 
Result so far: 100352.4
If we subtract 3456 from 4040, we get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Let's proceed to step 10:
The number 864 fits into 5840 6 times, leaving a remainder of 656.
Use 6 as the next digit of our solution. 
Result so far: 100352.46
Deduct 5184 from 5840 and we're left with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Going ahead to step 11:
When dividing 6560 by 864, we get 7 with a remainder of 512.
The next digit of our result is 7. 
Result so far: 100352.467
Deduct 6048 from 6560 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Advancing to step 12:
The number 864 fits into 5120 5 times, leaving a remainder of 800.
The number 5 becomes the next digit in our result. 
Result so far: 100352.4675
Deduct 4320 from 5120 and we're left with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 13:
864 goes into 8000 9 times with a remainder of 224.
Use 9 as the next digit of our solution. 
Result so far: 100352.46759
The remainder is 224 after subtracting 7776 from 8000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 14:
If we divide 2240 by 864, we get 2 and a remainder of 512.
The next digit of our result is 2. 
Result so far: 100352.467592
The remainder is 512 after subtracting 1728 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 15:
When dividing 5120 by 864, we get 5 with a remainder of 800.
Write down 5 as next digit of the result. 
Result so far: 100352.4675925
If we subtract 4320 from 5120, we get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Advancing to step 16:
When dividing 8000 by 864, we get 9 with a remainder of 224.
The next digit of our result is 9. 
Result so far: 100352.46759259
Subtract 7776 from 8000 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final result is 100352.46759259 with a remainder of 2.24e-07.