We divide 343012 by 81
The aim is to understand the frequency of 81 in 343012.

Moving on to step 1:
When dividing 3 by 81, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 81

Step 2:
34 divided by 81 is 0 with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Take the next digit (3) from the dividend and append it to 34, then repeat: 343 / 81

Moving on to step 3:
If we divide 343 by 81, we get 4 and a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 324 from 343, we get 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 81

On to step 4:
The number 81 fits into 190 2 times, leaving a remainder of 28.
The next digit of our result is 2. 
Result so far: 42.0
Subtract 162 from 190 to get 28.
Include the next digit (1) from the dividend after 28, then repeat: 281 / 81

Advancing to step 5:
281 divided by 81 is 3 with a remainder of 38.
The next digit of our result is 3. 
Result so far: 423.0
If we subtract 243 from 281, we get 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 81

On to step 6:
The number 81 fits into 382 4 times, leaving a remainder of 58.
Use 4 as the next digit of our solution. 
Result so far: 4234.0
The remainder is 58 after subtracting 324 from 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 7:
81 goes into 580 7 times with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 4234.7
Subtracting 567 from 580 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 8:
When dividing 130 by 81, we get 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 4234.71
If we subtract 81 from 130, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 9:
The number 81 fits into 490 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 4234.716
Subtract 486 from 490 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
81 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 4234.716
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
When dividing 400 by 81, we get 4 with a remainder of 76.
The next digit of our result is 4. 
Result so far: 4234.71604
Deduct 324 from 400 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 12:
81 goes into 760 9 times with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 4234.716049
If we take 729 away from 760, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 13:
If we divide 310 by 81, we get 3 and a remainder of 67.
The next digit of our result is 3. 
Result so far: 4234.7160493
If we subtract 243 from 310, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 14:
670 divided by 81 is 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 4234.71604938
If we subtract 648 from 670, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

In conclusion, the division gives 4234.71604938 with a balance of 2.2e-08.