We're dividing 281004 by 81 
The aim is to understand the frequency of 81 in 281004.

Advancing to step 1:
When dividing 2 by 81, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 81

Advancing to step 2:
When dividing 28 by 81, we get 0 with a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Include the next digit (1) from the dividend after 28, then repeat: 281 / 81

Let's proceed to step 3:
The number 81 fits into 281 3 times, leaving a remainder of 38.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 243 from 281 to get 38.
Include the next digit (0) from the dividend after 38, then repeat: 380 / 81

Advancing to step 4:
81 goes into 380 4 times with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 324 from 380, we get 56.
Fetch the next digit (0) from the dividend, attach it to 56 and continue: 560 / 81

On to step 5:
81 can be fit into 560 6 times, resulting in a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 346.0
The remainder is 74 after subtracting 486 from 560.
Include the next digit (4) from the dividend after 74, then repeat: 744 / 81

Advancing to step 6:
81 goes into 744 9 times with a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 3469.0
If we subtract 729 from 744, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
The number 81 fits into 150 1 times, leaving a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 3469.1
Subtracting 81 from 150 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 8:
When dividing 690 by 81, we get 8 with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 3469.18
Subtract 648 from 690 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
If we divide 420 by 81, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 3469.185
Subtract 405 from 420 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 10:
150 divided by 81 is 1 with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 3469.1851
Deduct 81 from 150 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 11:
The number 81 fits into 690 8 times, leaving a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 3469.18518
Deduct 648 from 690 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 12:
81 goes into 420 5 times with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 3469.185185
If we subtract 405 from 420, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
The number 81 fits into 150 1 times, leaving a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 3469.1851851
Deduct 81 from 150 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 14:
690 divided by 81 is 8 with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 3469.18518518
Deduct 648 from 690 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The quotient of the division is 3469.18518518, and the remainder is 4.2e-08.