655301 ÷ 81 
The aim is to understand the frequency of 81 in 655301.

Going ahead to step 1:
If we divide 6 by 81, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 81

Let's proceed to step 2:
65 divided by 81 is 0 with a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Include the next digit (5) from the dividend after 65, then repeat: 655 / 81

Let's proceed to step 3:
When dividing 655 by 81, we get 8 with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 648 from 655 and we're left with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 81

Going ahead to step 4:
The number 81 fits into 73 0 times, leaving a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Deduct 0 from 73 and we're left with 73.
Grab the next digit (0) from the dividend, add it to 73, then carry on: 730 / 81

On to step 5:
730 divided by 81 is 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 809.0
The remainder is 1 after subtracting 729 from 730.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 81

Advancing to step 6:
81 can be fit into 11 0 times, resulting in a remainder of 11.
The next digit of our result is 0. 
Result so far: 8090.0
Subtracting 0 from 11 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
If we divide 110 by 81, we get 1 and a remainder of 29.
The next digit of our result is 1. 
Result so far: 8090.1
Subtracting 81 from 110 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 8:
290 divided by 81 is 3 with a remainder of 47.
The next digit of our result is 3. 
Result so far: 8090.13
Subtracting 243 from 290 leaves us with 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 9:
The number 81 fits into 470 5 times, leaving a remainder of 65.
The next digit of our result is 5. 
Result so far: 8090.135
If we take 405 away from 470, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 10:
650 divided by 81 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 8090.1358
Subtract 648 from 650 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
81 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 8090.1358
If we take 0 away from 20, we end up with 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 12:
When dividing 200 by 81, we get 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 8090.135802
Subtract 162 from 200 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 13:
81 can be fit into 380 4 times, resulting in a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 8090.1358024
Subtracting 324 from 380 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
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: 8090.13580246
The remainder is 74 after subtracting 486 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Our division results in 8090.13580246 with a remaining 7.4e-08.