We look at the division of 48885967 by 809 
The aim is to understand the frequency of 809 in 48885967.

Going ahead to step 1:
When dividing 4 by 809, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 809

Advancing to step 2:
When dividing 48 by 809, we get 0 with a remainder of 48.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 48, we get 48.
Fetch the next digit (8) from the dividend, attach it to 48 and continue: 488 / 809

Advancing to step 3:
488 divided by 809 is 0 with a remainder of 488.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 488 leaves us with 488.
Append the next digit (8) from the dividend to 488 and continue with: 4888 / 809

On to step 4:
The number 809 fits into 4888 6 times, leaving a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 4854 from 4888 and we're left with 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 809

On to step 5:
345 divided by 809 is 0 with a remainder of 345.
Put 0 as the next digit of the answer. 
Result so far: 60.0
Subtract 0 from 345 to get 345.
Append the next digit (9) from the dividend to 345 and continue with: 3459 / 809

Step 6:
809 can be fit into 3459 4 times, resulting in a remainder of 223.
Write down 4 as next digit of the result. 
Result so far: 604.0
The remainder is 223 after subtracting 3236 from 3459.
Bring next digit (6) of the dividend behind the 223 and repeat the process: 2236 / 809

Step 7:
If we divide 2236 by 809, we get 2 and a remainder of 618.
Write down 2 as next digit of the result. 
Result so far: 6042.0
If we take 1618 away from 2236, we end up with 618.
Grab the next digit (7) from the dividend, add it to 618, then carry on: 6187 / 809

Advancing to step 8:
6187 divided by 809 is 7 with a remainder of 524.
Put 7 as the next digit of the answer. 
Result so far: 60427.0
Subtract 5663 from 6187 to get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

On to step 9:
5240 divided by 809 is 6 with a remainder of 386.
The next digit of our result is 6. 
Result so far: 60427.6
Subtracting 4854 from 5240 leaves us with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

On to step 10:
809 goes into 3860 4 times with a remainder of 624.
Write down 4 as next digit of the result. 
Result so far: 60427.64
Subtract 3236 from 3860 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Advancing to step 11:
When dividing 6240 by 809, we get 7 with a remainder of 577.
The number 7 becomes the next digit in our result. 
Result so far: 60427.647
If we subtract 5663 from 6240, we get 577.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

On to step 12:
When dividing 5770 by 809, we get 7 with a remainder of 107.
The next digit of our result is 7. 
Result so far: 60427.6477
The remainder is 107 after subtracting 5663 from 5770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

The final result is 60427.6477 with a remainder of 0.00107.