We look at the division of 53036450 by 823 
The aim is to understand the frequency of 823 in 53036450.

Step 1:
When dividing 5 by 823, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 823

Let's proceed to step 2:
The number 823 fits into 53 0 times, leaving a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Fetch the next digit (0) from the dividend, attach it to 53 and continue: 530 / 823

Let's proceed to step 3:
The number 823 fits into 530 0 times, leaving a remainder of 530.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 530 and we're left with 530.
Fetch the next digit (3) from the dividend, attach it to 530 and continue: 5303 / 823

Advancing to step 4:
When dividing 5303 by 823, we get 6 with a remainder of 365.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 4938 from 5303, we get 365.
Bring next digit (6) of the dividend behind the 365 and repeat the process: 3656 / 823

Step 5:
If we divide 3656 by 823, we get 4 and a remainder of 364.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Deduct 3292 from 3656 and we're left with 364.
Include the next digit (4) from the dividend after 364, then repeat: 3644 / 823

Step 6:
823 can be fit into 3644 4 times, resulting in a remainder of 352.
Put 4 as the next digit of the answer. 
Result so far: 644.0
If we subtract 3292 from 3644, we get 352.
Bring next digit (5) of the dividend behind the 352 and repeat the process: 3525 / 823

Step 7:
3525 divided by 823 is 4 with a remainder of 233.
The next digit of our result is 4. 
Result so far: 6444.0
Deduct 3292 from 3525 and we're left with 233.
Fetch the next digit (0) from the dividend, attach it to 233 and continue: 2330 / 823

Moving on to step 8:
823 goes into 2330 2 times with a remainder of 684.
The number 2 becomes the next digit in our result. 
Result so far: 64442.0
If we take 1646 away from 2330, we end up with 684.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

Advancing to step 9:
823 can be fit into 6840 8 times, resulting in a remainder of 256.
Put 8 as the next digit of the answer. 
Result so far: 64442.8
Subtracting 6584 from 6840 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 10:
823 goes into 2560 3 times with a remainder of 91.
The next digit of our result is 3. 
Result so far: 64442.83
Deduct 2469 from 2560 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 11:
If we divide 910 by 823, we get 1 and a remainder of 87.
The next digit of our result is 1. 
Result so far: 64442.831
If we take 823 away from 910, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 12:
870 divided by 823 is 1 with a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 64442.8311
If we subtract 823 from 870, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Our division results in 64442.8311 with a remaining 0.00047.