We're dividing 943162 by 81 
The aim is to understand the frequency of 81 in 943162.

Moving on to step 1:
81 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 81

On to step 2:
94 divided by 81 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 81 from 94, we get 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 81

Advancing to step 3:
When dividing 133 by 81, we get 1 with a remainder of 52.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 81 from 133 and we're left with 52.
Bring next digit (1) of the dividend behind the 52 and repeat the process: 521 / 81

Advancing to step 4:
When dividing 521 by 81, we get 6 with a remainder of 35.
Write down 6 as next digit of the result. 
Result so far: 116.0
Subtracting 486 from 521 leaves us with 35.
Bring next digit (6) of the dividend behind the 35 and repeat the process: 356 / 81

Advancing to step 5:
When dividing 356 by 81, we get 4 with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 1164.0
Deduct 324 from 356 and we're left with 32.
Include the next digit (2) from the dividend after 32, then repeat: 322 / 81

Advancing to step 6:
The number 81 fits into 322 3 times, leaving a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 11643.0
Deduct 243 from 322 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Step 7:
The number 81 fits into 790 9 times, leaving a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 11643.9
If we take 729 away from 790, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 8:
If we divide 610 by 81, we get 7 and a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 11643.97
Deduct 567 from 610 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 9:
81 can be fit into 430 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 11643.975
The remainder is 25 after subtracting 405 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 10:
81 goes into 250 3 times with a remainder of 7.
The next digit of our result is 3. 
Result so far: 11643.9753
The remainder is 7 after subtracting 243 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
When dividing 70 by 81, we get 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 11643.9753
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 12:
81 can be fit into 700 8 times, resulting in a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 11643.975308
Deduct 648 from 700 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 13:
81 goes into 520 6 times with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 11643.9753086
Subtracting 486 from 520 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 14:
The number 81 fits into 340 4 times, leaving a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 11643.97530864
Deduct 324 from 340 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 11643.97530864 and a remainder of 1.6e-08.