888862 divided by 81 
The aim is to understand the frequency of 81 in 888862.

Step 1:
When dividing 8 by 81, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 81

Step 2:
81 goes into 88 1 times with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 81 from 88 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 81

Let's proceed to step 3:
If we divide 78 by 81, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 81

Advancing to step 4:
788 divided by 81 is 9 with a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 109.0
If we take 729 away from 788, we end up with 59.
Append the next digit (6) from the dividend to 59 and continue with: 596 / 81

Advancing to step 5:
The number 81 fits into 596 7 times, leaving a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 1097.0
Subtracting 567 from 596 leaves us with 29.
Fetch the next digit (2) from the dividend, attach it to 29 and continue: 292 / 81

Going ahead to step 6:
If we divide 292 by 81, we get 3 and a remainder of 49.
The next digit of our result is 3. 
Result so far: 10973.0
If we take 243 away from 292, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 7:
81 goes into 490 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 10973.6
Subtracting 486 from 490 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
When dividing 40 by 81, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 10973.6
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
When dividing 400 by 81, we get 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 10973.604
If we take 324 away from 400, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 10:
760 divided by 81 is 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 10973.6049
The remainder is 31 after subtracting 729 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 11:
If we divide 310 by 81, we get 3 and a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 10973.60493
Subtracting 243 from 310 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 12:
If we divide 670 by 81, we get 8 and a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 10973.604938
If we take 648 away from 670, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
If we divide 220 by 81, we get 2 and a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 10973.6049382
Deduct 162 from 220 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 14:
When dividing 580 by 81, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 10973.60493827
Subtract 567 from 580 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 10973.60493827, with a leftover of 1.3e-08.