We're dividing 174133 by 81 
The aim is to understand the frequency of 81 in 174133.

Let's proceed to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 81

Let's proceed to step 2:
The number 81 fits into 17 0 times, leaving a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 81

Let's proceed to step 3:
If we divide 174 by 81, we get 2 and a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 12 after subtracting 162 from 174.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 81

Moving on to step 4:
When dividing 121 by 81, we get 1 with a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 40 after subtracting 81 from 121.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 81

Going ahead to step 5:
The number 81 fits into 403 4 times, leaving a remainder of 79.
Record the quotient 4 as the next digit in the result. 
Result so far: 214.0
If we take 324 away from 403, we end up with 79.
Include the next digit (3) from the dividend after 79, then repeat: 793 / 81

Advancing to step 6:
81 can be fit into 793 9 times, resulting in a remainder of 64.
Write down 9 as next digit of the result. 
Result so far: 2149.0
Subtracting 729 from 793 leaves us 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.

Advancing to step 7:
The number 81 fits into 640 7 times, leaving a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 2149.7
The remainder is 73 after subtracting 567 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 8:
The number 81 fits into 730 9 times, leaving a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 2149.79
The remainder is 1 after subtracting 729 from 730.
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 9:
The number 81 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 2149.79
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
100 divided by 81 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 2149.7901
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.

Advancing to step 11:
When dividing 190 by 81, we get 2 with a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 2149.79012
Subtracting 162 from 190 leaves us 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.

Step 12:
81 can be fit into 280 3 times, resulting in a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 2149.790123
The remainder is 37 after subtracting 243 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 13:
When dividing 370 by 81, we get 4 with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 2149.7901234
Subtracting 324 from 370 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 14:
460 divided by 81 is 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 2149.79012345
If we subtract 405 from 460, we get 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 final result is 2149.79012345 with a remainder of 5.5e-08.