We're dividing 224642 by 81 
The aim is to understand the frequency of 81 in 224642.

Advancing to step 1:
81 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 81

Going ahead to step 2:
If we divide 22 by 81, we get 0 and a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 22, we end up with 22.
Append the next digit (4) from the dividend to 22 and continue with: 224 / 81

Moving on to step 3:
If we divide 224 by 81, we get 2 and a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 162 away from 224, we end up with 62.
Append the next digit (6) from the dividend to 62 and continue with: 626 / 81

Let's proceed to step 4:
If we divide 626 by 81, we get 7 and a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 567 away from 626, we end up with 59.
Include the next digit (4) from the dividend after 59, then repeat: 594 / 81

Going ahead to step 5:
81 goes into 594 7 times with a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 277.0
If we subtract 567 from 594, we get 27.
Grab the next digit (2) from the dividend, add it to 27, then carry on: 272 / 81

Advancing to step 6:
272 divided by 81 is 3 with a remainder of 29.
The next digit of our result is 3. 
Result so far: 2773.0
The remainder is 29 after subtracting 243 from 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 7:
81 goes into 290 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 2773.3
Subtract 243 from 290 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 8:
470 divided by 81 is 5 with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 2773.35
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 9:
650 divided by 81 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 2773.358
The remainder is 2 after subtracting 648 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
When dividing 20 by 81, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 2773.358
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
81 goes into 200 2 times with a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 2773.35802
If we take 162 away from 200, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
When dividing 380 by 81, we get 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 2773.358024
Subtract 324 from 380 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 13:
560 divided by 81 is 6 with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 2773.3580246
Deduct 486 from 560 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 14:
81 goes into 740 9 times with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 2773.35802469
The remainder is 11 after subtracting 729 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The quotient of the division is 2773.35802469, and the remainder is 1.1e-08.