We look at the division of 4195 by 81 
The aim is to understand the frequency of 81 in 4195.

Let's proceed to step 1:
If we divide 4 by 81, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 81

Advancing to step 2:
41 divided by 81 is 0 with a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 41 to get 41.
Include the next digit (9) from the dividend after 41, then repeat: 419 / 81

Let's proceed to step 3:
419 divided by 81 is 5 with a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 405 from 419, we get 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 81

On to step 4:
81 goes into 145 1 times with a remainder of 64.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
If we take 81 away from 145, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 5:
81 can be fit into 640 7 times, resulting in a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 51.7
Deduct 567 from 640 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 6:
When dividing 730 by 81, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 51.79
Subtracting 729 from 730 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 81 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 51.79
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
81 goes into 100 1 times with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 51.7901
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
If we divide 190 by 81, we get 2 and a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 51.79012
Deduct 162 from 190 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
If we divide 280 by 81, we get 3 and a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 51.790123
Deduct 243 from 280 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 11:
When dividing 370 by 81, we get 4 with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 51.7901234
If we subtract 324 from 370, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 12:
81 goes into 460 5 times with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 51.79012345
Subtracting 405 from 460 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The quotient of the division is 51.79012345, and the remainder is 5.5e-08.