We're dividing 524319 by 81 
The aim is to understand the frequency of 81 in 524319.

Step 1:
81 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 81

Moving on to step 2:
If we divide 52 by 81, we get 0 and a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Fetch the next digit (4) from the dividend, attach it to 52 and continue: 524 / 81

Going ahead to step 3:
524 divided by 81 is 6 with a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 38 after subtracting 486 from 524.
Bring next digit (3) of the dividend behind the 38 and repeat the process: 383 / 81

On to step 4:
81 goes into 383 4 times with a remainder of 59.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we subtract 324 from 383, we get 59.
Grab the next digit (1) from the dividend, add it to 59, then carry on: 591 / 81

Let's proceed to step 5:
591 divided by 81 is 7 with a remainder of 24.
The next digit of our result is 7. 
Result so far: 647.0
If we take 567 away from 591, we end up with 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 81

Let's proceed to step 6:
The number 81 fits into 249 3 times, leaving a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 6473.0
Deduct 243 from 249 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.

Moving on to step 7:
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: 6473.0
The remainder is 60 after subtracting 0 from 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 8:
If we divide 600 by 81, we get 7 and a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 6473.07
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.

Moving on to step 9:
The number 81 fits into 330 4 times, leaving a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 6473.074
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.

Moving on to step 10:
When dividing 60 by 81, we get 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 6473.074
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
When dividing 600 by 81, we get 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 6473.07407
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.

Moving on to step 12:
When dividing 330 by 81, we get 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 6473.074074
The remainder is 6 after subtracting 324 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
81 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 6473.074074
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.

Step 14:
81 can be fit into 600 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 6473.07407407
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

In conclusion, the division gives 6473.07407407 with a balance of 3.3e-08.