We're dividing 71852664 by 823 
The aim is to understand the frequency of 823 in 71852664.

Going ahead to step 1:
When dividing 7 by 823, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 823

Let's proceed to step 2:
When dividing 71 by 823, we get 0 with a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Take the next digit (8) from the dividend and append it to 71, then repeat: 718 / 823

Going ahead to step 3:
823 can be fit into 718 0 times, resulting in a remainder of 718.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 718, we get 718.
Append the next digit (5) from the dividend to 718 and continue with: 7185 / 823

On to step 4:
823 goes into 7185 8 times with a remainder of 601.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 6584 from 7185, we get 601.
Bring next digit (2) of the dividend behind the 601 and repeat the process: 6012 / 823

Let's proceed to step 5:
823 can be fit into 6012 7 times, resulting in a remainder of 251.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
If we take 5761 away from 6012, we end up with 251.
Take the next digit (6) from the dividend and append it to 251, then repeat: 2516 / 823

Moving on to step 6:
If we divide 2516 by 823, we get 3 and a remainder of 47.
The next digit of our result is 3. 
Result so far: 873.0
If we take 2469 away from 2516, we end up with 47.
Bring next digit (6) of the dividend behind the 47 and repeat the process: 476 / 823

Step 7:
If we divide 476 by 823, we get 0 and a remainder of 476.
Record the quotient 0 as the next digit in the result. 
Result so far: 8730.0
Deduct 0 from 476 and we're left with 476.
Fetch the next digit (4) from the dividend, attach it to 476 and continue: 4764 / 823

Moving on to step 8:
823 goes into 4764 5 times with a remainder of 649.
Put 5 as the next digit of the answer. 
Result so far: 87305.0
Subtracting 4115 from 4764 leaves us with 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6490, and continue the process.

Advancing to step 9:
823 goes into 6490 7 times with a remainder of 729.
Put 7 as the next digit of the answer. 
Result so far: 87305.7
Subtracting 5761 from 6490 leaves us with 729.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7290, and continue the process.

Going ahead to step 10:
If we divide 7290 by 823, we get 8 and a remainder of 706.
Record the quotient 8 as the next digit in the result. 
Result so far: 87305.78
If we take 6584 away from 7290, we end up with 706.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

On to step 11:
823 goes into 7060 8 times with a remainder of 476.
The next digit of our result is 8. 
Result so far: 87305.788
The remainder is 476 after subtracting 6584 from 7060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

After the division, we end up with 87305.788 and a remainder of 0.0476.