196633 divided by 81 
The aim is to understand the frequency of 81 in 196633.

Advancing 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
Subtract 0 from 1 to get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 81

Let's proceed to step 2:
19 divided by 81 is 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 81

Let's proceed to step 3:
The number 81 fits into 196 2 times, leaving a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 162 from 196 leaves us with 34.
Fetch the next digit (6) from the dividend, attach it to 34 and continue: 346 / 81

Advancing to step 4:
346 divided by 81 is 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
If we subtract 324 from 346, we get 22.
Include the next digit (3) from the dividend after 22, then repeat: 223 / 81

Moving on to step 5:
81 can be fit into 223 2 times, resulting in a remainder of 61.
Use 2 as the next digit of our solution. 
Result so far: 242.0
The remainder is 61 after subtracting 162 from 223.
Include the next digit (3) from the dividend after 61, then repeat: 613 / 81

On to step 6:
613 divided by 81 is 7 with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 2427.0
Deduct 567 from 613 and we're left 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.

Let's proceed to step 7:
81 goes into 460 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 2427.5
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.

Advancing to step 8:
550 divided by 81 is 6 with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 2427.56
Subtracting 486 from 550 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.

Moving on to step 9:
When dividing 640 by 81, we get 7 with a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 2427.567
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.

Step 10:
When dividing 730 by 81, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 2427.5679
If we take 729 away from 730, we end up 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.

On to step 11:
81 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 2427.5679
Subtract 0 from 10 to 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.

Going ahead to step 12:
81 goes into 100 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 2427.567901
If we subtract 81 from 100, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
81 goes into 190 2 times with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 2427.5679012
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 14:
The number 81 fits into 280 3 times, leaving a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 2427.56790123
If we subtract 243 from 280, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Our division results in 2427.56790123 with a remaining 3.7e-08.