We're dividing 264308 by 81 
The aim is to understand the frequency of 81 in 264308.

Going ahead to step 1:
The number 81 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 81

On to step 2:
81 goes into 26 0 times with a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 26 to get 26.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 81

Moving on to step 3:
The number 81 fits into 264 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 243 from 264 to get 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 81

Let's proceed to step 4:
213 divided by 81 is 2 with a remainder of 51.
Use 2 as the next digit of our solution. 
Result so far: 32.0
If we subtract 162 from 213, we get 51.
Include the next digit (0) from the dividend after 51, then repeat: 510 / 81

Moving on to step 5:
When dividing 510 by 81, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 326.0
If we subtract 486 from 510, we get 24.
Append the next digit (8) from the dividend to 24 and continue with: 248 / 81

Step 6:
81 goes into 248 3 times with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 3263.0
Subtract 243 from 248 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
If we divide 50 by 81, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 3263.0
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 8:
The number 81 fits into 500 6 times, leaving a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 3263.06
If we subtract 486 from 500, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
81 goes into 140 1 times with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 3263.061
Subtracting 81 from 140 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 10:
If we divide 590 by 81, we get 7 and a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 3263.0617
Subtract 567 from 590 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 11:
81 can be fit into 230 2 times, resulting in a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 3263.06172
The remainder is 68 after subtracting 162 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 12:
The number 81 fits into 680 8 times, leaving a remainder of 32.
The next digit of our result is 8. 
Result so far: 3263.061728
If we take 648 away from 680, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
When dividing 320 by 81, we get 3 with a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 3263.0617283
The remainder is 77 after subtracting 243 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 14:
770 divided by 81 is 9 with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 3263.06172839
If we subtract 729 from 770, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The quotient of the division is 3263.06172839, and the remainder is 4.1e-08.