We look at the division of 22556708 by 81 
The aim is to understand the frequency of 81 in 22556708.

Let's proceed to step 1:
81 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 81

Advancing to step 2:
When dividing 22 by 81, we get 0 with a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 22 and we're left with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 81

Going ahead to step 3:
225 divided by 81 is 2 with a remainder of 63.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 162 from 225 leaves us with 63.
Append the next digit (5) from the dividend to 63 and continue with: 635 / 81

Let's proceed to step 4:
The number 81 fits into 635 7 times, leaving a remainder of 68.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we subtract 567 from 635, we get 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 81

Step 5:
When dividing 686 by 81, we get 8 with a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 278.0
Deduct 648 from 686 and we're left with 38.
Append the next digit (7) from the dividend to 38 and continue with: 387 / 81

Moving on to step 6:
387 divided by 81 is 4 with a remainder of 63.
Record the quotient 4 as the next digit in the result. 
Result so far: 2784.0
The remainder is 63 after subtracting 324 from 387.
Grab the next digit (0) from the dividend, add it to 63, then carry on: 630 / 81

Let's proceed to step 7:
When dividing 630 by 81, we get 7 with a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 27847.0
Subtract 567 from 630 to get 63.
Include the next digit (8) from the dividend after 63, then repeat: 638 / 81

Going ahead to step 8:
If we divide 638 by 81, we get 7 and a remainder of 71.
The next digit of our result is 7. 
Result so far: 278477.0
Subtracting 567 from 638 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 9:
If we divide 710 by 81, we get 8 and a remainder of 62.
The next digit of our result is 8. 
Result so far: 278477.8
Subtract 648 from 710 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 10:
If we divide 620 by 81, we get 7 and a remainder of 53.
The next digit of our result is 7. 
Result so far: 278477.87
The remainder is 53 after subtracting 567 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 11:
530 divided by 81 is 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 278477.876
Deduct 486 from 530 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 12:
440 divided by 81 is 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 278477.8765
Subtracting 405 from 440 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 13:
The number 81 fits into 350 4 times, leaving a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 278477.87654
Deduct 324 from 350 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 14:
81 goes into 260 3 times with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 278477.876543
If we take 243 away from 260, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 15:
81 can be fit into 170 2 times, resulting in a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 278477.8765432
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 16:
If we divide 80 by 81, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 278477.8765432
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 278477.8765432, with a leftover of 8e-08.