We divide 195875 by 81
The aim is to understand the frequency of 81 in 195875.

Moving on to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 81

Moving on to step 2:
The number 81 fits into 19 0 times, leaving a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Take the next digit (5) from the dividend and append it to 19, then repeat: 195 / 81

Let's proceed to step 3:
If we divide 195 by 81, we get 2 and a remainder of 33.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 162 from 195, we get 33.
Bring next digit (8) of the dividend behind the 33 and repeat the process: 338 / 81

Step 4:
The number 81 fits into 338 4 times, leaving a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
Subtracting 324 from 338 leaves us with 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 81

Advancing to step 5:
81 can be fit into 147 1 times, resulting in a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 241.0
If we subtract 81 from 147, we get 66.
Include the next digit (5) from the dividend after 66, then repeat: 665 / 81

On to step 6:
81 goes into 665 8 times with a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 2418.0
Subtracting 648 from 665 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
The number 81 fits into 170 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2418.2
Subtract 162 from 170 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
When dividing 80 by 81, we get 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 2418.2
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 9:
81 can be fit into 800 9 times, resulting in a remainder of 71.
Use 9 as the next digit of our solution. 
Result so far: 2418.209
Subtracting 729 from 800 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 10:
81 can be fit into 710 8 times, resulting in a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 2418.2098
If we take 648 away from 710, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 11:
When dividing 620 by 81, we get 7 with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 2418.20987
Subtracting 567 from 620 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 12:
When dividing 530 by 81, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 2418.209876
Subtract 486 from 530 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 13:
440 divided by 81 is 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 2418.2098765
Subtract 405 from 440 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 14:
350 divided by 81 is 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 2418.20987654
Subtract 324 from 350 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Our division results in 2418.20987654 with a remaining 2.6e-08.