755046 divided by 81 
The aim is to understand the frequency of 81 in 755046.

On to step 1:
7 divided by 81 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 81

Going ahead to step 2:
The number 81 fits into 75 0 times, leaving a remainder of 75.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Append the next digit (5) from the dividend to 75 and continue with: 755 / 81

Let's proceed to step 3:
If we divide 755 by 81, we get 9 and a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 729 from 755 and we're left with 26.
Include the next digit (0) from the dividend after 26, then repeat: 260 / 81

Going ahead to step 4:
81 goes into 260 3 times with a remainder of 17.
The next digit of our result is 3. 
Result so far: 93.0
If we take 243 away from 260, we end up with 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 81

Advancing to step 5:
When dividing 174 by 81, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 932.0
If we take 162 away from 174, we end up with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 81

On to step 6:
When dividing 126 by 81, we get 1 with a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 9321.0
Deduct 81 from 126 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 7:
81 goes into 450 5 times with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 9321.5
Subtract 405 from 450 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 8:
81 can be fit into 450 5 times, resulting in a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 9321.55
The remainder is 45 after subtracting 405 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

After the division, we end up with 9321.55 and a remainder of 0.045.