662204 divided by 81 
The aim is to understand the frequency of 81 in 662204.

Advancing to step 1:
6 divided by 81 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 81

Advancing to step 2:
81 goes into 66 0 times with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Include the next digit (2) from the dividend after 66, then repeat: 662 / 81

Advancing to step 3:
662 divided by 81 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 648 from 662, we get 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 81

On to step 4:
81 goes into 142 1 times with a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 81.0
If we take 81 away from 142, we end up with 61.
Include the next digit (0) from the dividend after 61, then repeat: 610 / 81

Let's proceed to step 5:
610 divided by 81 is 7 with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 817.0
If we take 567 away from 610, we end up with 43.
Grab the next digit (4) from the dividend, add it to 43, then carry on: 434 / 81

On to step 6:
When dividing 434 by 81, we get 5 with a remainder of 29.
The next digit of our result is 5. 
Result so far: 8175.0
Subtract 405 from 434 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
290 divided by 81 is 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 8175.3
Subtract 243 from 290 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 8:
The number 81 fits into 470 5 times, leaving a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 8175.35
Subtracting 405 from 470 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 9:
The number 81 fits into 650 8 times, leaving a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 8175.358
Subtract 648 from 650 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
81 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 8175.358
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 8175.35802
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 12:
When dividing 380 by 81, we get 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 8175.358024
Subtract 324 from 380 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
560 divided by 81 is 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 8175.3580246
If we take 486 away from 560, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 14:
740 divided by 81 is 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 8175.35802469
If we take 729 away from 740, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 8175.35802469 with a remainder of 1.1e-08.