We look at the division of 52164676 by 809 
The aim is to understand the frequency of 809 in 52164676.

Step 1:
5 divided by 809 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 809

Going ahead to step 2:
809 goes into 52 0 times with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 809

On to step 3:
809 goes into 521 0 times with a remainder of 521.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 521 and we're left with 521.
Take the next digit (6) from the dividend and append it to 521, then repeat: 5216 / 809

Advancing to step 4:
809 goes into 5216 6 times with a remainder of 362.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 4854 from 5216 and we're left with 362.
Include the next digit (4) from the dividend after 362, then repeat: 3624 / 809

Advancing to step 5:
809 goes into 3624 4 times with a remainder of 388.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we take 3236 away from 3624, we end up with 388.
Bring next digit (6) of the dividend behind the 388 and repeat the process: 3886 / 809

Let's proceed to step 6:
3886 divided by 809 is 4 with a remainder of 650.
The number 4 becomes the next digit in our result. 
Result so far: 644.0
Subtracting 3236 from 3886 leaves us with 650.
Include the next digit (7) from the dividend after 650, then repeat: 6507 / 809

On to step 7:
809 goes into 6507 8 times with a remainder of 35.
The number 8 becomes the next digit in our result. 
Result so far: 6448.0
If we subtract 6472 from 6507, we get 35.
Bring next digit (6) of the dividend behind the 35 and repeat the process: 356 / 809

Step 8:
When dividing 356 by 809, we get 0 with a remainder of 356.
Record the quotient 0 as the next digit in the result. 
Result so far: 64480.0
If we take 0 away from 356, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Let's proceed to step 9:
The number 809 fits into 3560 4 times, leaving a remainder of 324.
Write down 4 as next digit of the result. 
Result so far: 64480.4
If we subtract 3236 from 3560, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Moving on to step 10:
3240 divided by 809 is 4 with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 64480.44
Subtract 3236 from 3240 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 64480.44 with a remaining 0.004.