454950 divided by 81 
The aim is to understand the frequency of 81 in 454950.

Going ahead to step 1:
When dividing 4 by 81, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 81

Moving on to step 2:
81 can be fit into 45 0 times, resulting in a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Fetch the next digit (4) from the dividend, attach it to 45 and continue: 454 / 81

On to step 3:
81 goes into 454 5 times with a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 49 after subtracting 405 from 454.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 81

Step 4:
If we divide 499 by 81, we get 6 and a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 56.0
Subtracting 486 from 499 leaves us with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 81

Moving on to step 5:
135 divided by 81 is 1 with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 561.0
If we subtract 81 from 135, we get 54.
Bring next digit (0) of the dividend behind the 54 and repeat the process: 540 / 81

Moving on to step 6:
81 can be fit into 540 6 times, resulting in a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 5616.0
If we subtract 486 from 540, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
81 can be fit into 540 6 times, resulting in a remainder of 54.
Record the quotient 6 as the next digit in the result. 
Result so far: 5616.6
If we take 486 away from 540, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 8:
If we divide 540 by 81, we get 6 and a remainder of 54.
Use 6 as the next digit of our solution. 
Result so far: 5616.66
The remainder is 54 after subtracting 486 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 5616.66 and a remainder of 0.054.