884978 divided by 81 
The aim is to understand the frequency of 81 in 884978.

Moving on to step 1:
When dividing 8 by 81, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 81

Going ahead to step 2:
81 goes into 88 1 times with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 81 away from 88, we end up with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 81

On to step 3:
The number 81 fits into 74 0 times, leaving a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 74 to get 74.
Take the next digit (9) from the dividend and append it to 74, then repeat: 749 / 81

Moving on to step 4:
When dividing 749 by 81, we get 9 with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 109.0
If we take 729 away from 749, we end up with 20.
Fetch the next digit (7) from the dividend, attach it to 20 and continue: 207 / 81

Step 5:
When dividing 207 by 81, we get 2 with a remainder of 45.
Put 2 as the next digit of the answer. 
Result so far: 1092.0
Deduct 162 from 207 and we're left with 45.
Include the next digit (8) from the dividend after 45, then repeat: 458 / 81

Advancing to step 6:
81 can be fit into 458 5 times, resulting in a remainder of 53.
Put 5 as the next digit of the answer. 
Result so far: 10925.0
The remainder is 53 after subtracting 405 from 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
When dividing 530 by 81, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 10925.6
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.

Moving on to step 8:
440 divided by 81 is 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 10925.65
Subtract 405 from 440 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
350 divided by 81 is 4 with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 10925.654
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.

On to step 10:
If we divide 260 by 81, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 10925.6543
Subtract 243 from 260 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
81 goes into 170 2 times with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 10925.65432
If we subtract 162 from 170, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
The number 81 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 10925.65432
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.

On to step 13:
800 divided by 81 is 9 with a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 10925.6543209
If we subtract 729 from 800, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 14:
81 can be fit into 710 8 times, resulting in a remainder of 62.
Put 8 as the next digit of the answer. 
Result so far: 10925.65432098
Subtracting 648 from 710 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

In conclusion, the division gives 10925.65432098 with a balance of 6.2e-08.