707471 ÷ 81 
The aim is to understand the frequency of 81 in 707471.

Going ahead to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 81

On to step 2:
81 can be fit into 70 0 times, resulting in a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Take the next digit (7) from the dividend and append it to 70, then repeat: 707 / 81

On to step 3:
707 divided by 81 is 8 with a remainder of 59.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 648 from 707 leaves us with 59.
Fetch the next digit (4) from the dividend, attach it to 59 and continue: 594 / 81

Advancing to step 4:
81 can be fit into 594 7 times, resulting in a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 87.0
If we subtract 567 from 594, we get 27.
Take the next digit (7) from the dividend and append it to 27, then repeat: 277 / 81

Let's proceed to step 5:
If we divide 277 by 81, we get 3 and a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 873.0
If we take 243 away from 277, we end up with 34.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 81

Step 6:
81 can be fit into 341 4 times, resulting in a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 8734.0
If we take 324 away from 341, 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.

Advancing to step 7:
If we divide 170 by 81, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 8734.2
If we take 162 away from 170, we end up with 8.
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 8:
If we divide 80 by 81, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 8734.2
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 9:
If we divide 800 by 81, we get 9 and a remainder of 71.
The next digit of our result is 9. 
Result so far: 8734.209
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.

Going ahead to step 10:
81 goes into 710 8 times with a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 8734.2098
If we subtract 648 from 710, we 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.

Let's proceed to step 11:
If we divide 620 by 81, we get 7 and a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 8734.20987
If we take 567 away from 620, we end up with 53.
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 12:
The number 81 fits into 530 6 times, leaving a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 8734.209876
Subtract 486 from 530 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
If we divide 440 by 81, we get 5 and a remainder of 35.
The next digit of our result is 5. 
Result so far: 8734.2098765
If we subtract 405 from 440, we 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.

Moving on to step 14:
The number 81 fits into 350 4 times, leaving a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 8734.20987654
The remainder is 26 after subtracting 324 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 8734.20987654 with a remainder of 2.6e-08.