We look at the division of 2012 by 81 
The aim is to understand the frequency of 81 in 2012.

Going ahead to step 1:
If we divide 2 by 81, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 81

On to step 2:
When dividing 20 by 81, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 81

Advancing to step 3:
201 divided by 81 is 2 with a remainder of 39.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 162 from 201 to get 39.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 81

Going ahead to step 4:
81 goes into 392 4 times with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 324 from 392 to get 68.
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 5:
81 can be fit into 680 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 24.8
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 6:
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: 24.83
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.

Let's proceed to step 7:
770 divided by 81 is 9 with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 24.839
If we take 729 away from 770, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 8:
81 goes into 410 5 times with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 24.8395
The remainder is 5 after subtracting 405 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
When dividing 50 by 81, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 24.8395
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
The number 81 fits into 500 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 24.839506
Deduct 486 from 500 and we're left with 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 11:
If we divide 140 by 81, we get 1 and a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 24.8395061
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.

Let's proceed to step 12:
81 can be fit into 590 7 times, resulting in a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 24.83950617
If we take 567 away from 590, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 24.83950617 with a balance of 2.3e-08.