We're dividing 291705 by 81 
The aim is to understand the frequency of 81 in 291705.

Moving on to step 1:
81 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 81

Advancing to step 2:
The number 81 fits into 29 0 times, leaving a remainder of 29.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 29 after subtracting 0 from 29.
Include the next digit (1) from the dividend after 29, then repeat: 291 / 81

Moving on to step 3:
291 divided by 81 is 3 with a remainder of 48.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 243 from 291 leaves us with 48.
Bring next digit (7) of the dividend behind the 48 and repeat the process: 487 / 81

Going ahead to step 4:
When dividing 487 by 81, we get 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 36.0
The remainder is 1 after subtracting 486 from 487.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 81

Let's proceed to step 5:
When dividing 10 by 81, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 360.0
If we subtract 0 from 10, we get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 81

Advancing to step 6:
81 can be fit into 105 1 times, resulting in a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 3601.0
Subtract 81 from 105 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
240 divided by 81 is 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 3601.2
If we take 162 away from 240, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 8:
81 can be fit into 780 9 times, resulting in a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 3601.29
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 9:
The number 81 fits into 510 6 times, leaving a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 3601.296
Deduct 486 from 510 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
240 divided by 81 is 2 with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 3601.2962
Subtracting 162 from 240 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 11:
81 goes into 780 9 times with a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 3601.29629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 12:
When dividing 510 by 81, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 3601.296296
Subtracting 486 from 510 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 13:
81 can be fit into 240 2 times, resulting in a remainder of 78.
The next digit of our result is 2. 
Result so far: 3601.2962962
The remainder is 78 after subtracting 162 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 14:
81 goes into 780 9 times with a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 3601.29629629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

After the division, we end up with 3601.29629629 and a remainder of 5.1e-08.