We divide 727270 by 81
The aim is to understand the frequency of 81 in 727270.

Moving on to step 1:
81 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 81

Let's proceed to step 2:
81 can be fit into 72 0 times, resulting in a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Append the next digit (7) from the dividend to 72 and continue with: 727 / 81

Going ahead to step 3:
If we divide 727 by 81, we get 8 and a remainder of 79.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 79 after subtracting 648 from 727.
Fetch the next digit (2) from the dividend, attach it to 79 and continue: 792 / 81

Step 4:
81 can be fit into 792 9 times, resulting in a remainder of 63.
Use 9 as the next digit of our solution. 
Result so far: 89.0
If we take 729 away from 792, we end up with 63.
Append the next digit (7) from the dividend to 63 and continue with: 637 / 81

On to step 5:
81 can be fit into 637 7 times, resulting in a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 897.0
If we take 567 away from 637, we end up with 70.
Append the next digit (0) from the dividend to 70 and continue with: 700 / 81

Step 6:
The number 81 fits into 700 8 times, leaving a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 8978.0
Subtracting 648 from 700 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 7:
When dividing 520 by 81, we get 6 with a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 8978.6
If we subtract 486 from 520, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
If we divide 340 by 81, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 8978.64
Subtracting 324 from 340 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
The number 81 fits into 160 1 times, leaving a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 8978.641
If we subtract 81 from 160, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 10:
81 goes into 790 9 times with a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 8978.6419
Deduct 729 from 790 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 11:
610 divided by 81 is 7 with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 8978.64197
If we subtract 567 from 610, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 12:
The number 81 fits into 430 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 8978.641975
If we subtract 405 from 430, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 13:
If we divide 250 by 81, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 8978.6419753
Deduct 243 from 250 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 14:
The number 81 fits into 70 0 times, leaving a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 8978.6419753
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final result is 8978.6419753 with a remainder of 7e-08.