86457604 divided by 823 
We want to divide 86457604 by 823.

Moving on to step 1:
8 divided by 823 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 823

Moving on to step 2:
823 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.
Grab the next digit (4) from the dividend, add it to 86, then carry on: 864 / 823

On to step 3:
823 can be fit into 864 1 times, resulting in a remainder of 41.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 823 from 864 and we're left with 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 823

Let's proceed to step 4:
The number 823 fits into 415 0 times, leaving a remainder of 415.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 415 and we're left with 415.
Append the next digit (7) from the dividend to 415 and continue with: 4157 / 823

Advancing to step 5:
The number 823 fits into 4157 5 times, leaving a remainder of 42.
Write down 5 as next digit of the result. 
Result so far: 105.0
Subtracting 4115 from 4157 leaves us with 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 823

Let's proceed to step 6:
823 can be fit into 426 0 times, resulting in a remainder of 426.
The number 0 becomes the next digit in our result. 
Result so far: 1050.0
Subtract 0 from 426 to get 426.
Include the next digit (0) from the dividend after 426, then repeat: 4260 / 823

Step 7:
823 can be fit into 4260 5 times, resulting in a remainder of 145.
The number 5 becomes the next digit in our result. 
Result so far: 10505.0
Subtract 4115 from 4260 to get 145.
Take the next digit (4) from the dividend and append it to 145, then repeat: 1454 / 823

Going ahead to step 8:
When dividing 1454 by 823, we get 1 with a remainder of 631.
Put 1 as the next digit of the answer. 
Result so far: 105051.0
Subtracting 823 from 1454 leaves us with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Step 9:
When dividing 6310 by 823, we get 7 with a remainder of 549.
Write down 7 as next digit of the result. 
Result so far: 105051.7
Deduct 5761 from 6310 and we're left with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

On to step 10:
5490 divided by 823 is 6 with a remainder of 552.
Put 6 as the next digit of the answer. 
Result so far: 105051.76
Subtract 4938 from 5490 to get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

On to step 11:
If we divide 5520 by 823, we get 6 and a remainder of 582.
Put 6 as the next digit of the answer. 
Result so far: 105051.766
Subtract 4938 from 5520 to get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Our division results in 105051.766 with a remaining 0.0582.