727602 divided by 81 
The aim is to understand the frequency of 81 in 727602.

On to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 81

On to step 2:
The number 81 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Grab the next digit (7) from the dividend, add it to 72, then carry on: 727 / 81

Moving on to step 3:
81 goes into 727 8 times with a remainder of 79.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 648 away from 727, we end up with 79.
Grab the next digit (6) from the dividend, add it to 79, then carry on: 796 / 81

Step 4:
796 divided by 81 is 9 with a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 89.0
The remainder is 67 after subtracting 729 from 796.
Fetch the next digit (0) from the dividend, attach it to 67 and continue: 670 / 81

Advancing to step 5:
The number 81 fits into 670 8 times, leaving a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 898.0
If we take 648 away from 670, we end up with 22.
Bring next digit (2) of the dividend behind the 22 and repeat the process: 222 / 81

Let's proceed to step 6:
The number 81 fits into 222 2 times, leaving a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 8982.0
If we take 162 away from 222, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 7:
If we divide 600 by 81, we get 7 and a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 8982.7
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 8:
81 can be fit into 330 4 times, resulting in a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 8982.74
Subtracting 324 from 330 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
The number 81 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 8982.74
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
If we divide 600 by 81, we get 7 and a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 8982.7407
The remainder is 33 after subtracting 567 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 11:
330 divided by 81 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 8982.74074
If we subtract 324 from 330, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
When dividing 60 by 81, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 8982.74074
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 13:
81 can be fit into 600 7 times, resulting in a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 8982.7407407
If we take 567 away from 600, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 14:
When dividing 330 by 81, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 8982.74074074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

In conclusion, the division gives 8982.74074074 with a balance of 6e-09.