504560 ÷ 81 
The aim is to understand the frequency of 81 in 504560.

Moving on to step 1:
81 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 81

Let's proceed to step 2:
When dividing 50 by 81, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 50, we end up with 50.
Fetch the next digit (4) from the dividend, attach it to 50 and continue: 504 / 81

Let's proceed to step 3:
504 divided by 81 is 6 with a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 18 after subtracting 486 from 504.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 81

Step 4:
When dividing 185 by 81, we get 2 with a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
If we subtract 162 from 185, we get 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 81

Let's proceed to step 5:
236 divided by 81 is 2 with a remainder of 74.
The number 2 becomes the next digit in our result. 
Result so far: 622.0
If we subtract 162 from 236, we get 74.
Take the next digit (0) from the dividend and append it to 74, then repeat: 740 / 81

Let's proceed to step 6:
When dividing 740 by 81, we get 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 6229.0
Subtract 729 from 740 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
When dividing 110 by 81, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 6229.1
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:
81 can be fit into 290 3 times, resulting in a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 6229.13
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.

Moving on to step 9:
81 goes into 470 5 times with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 6229.135
Subtract 405 from 470 to get 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.
Record the quotient 8 as the next digit in the result. 
Result so far: 6229.1358
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.

Step 11:
20 divided by 81 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 6229.1358
Subtracting 0 from 20 leaves us 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.

Let's proceed to step 12:
When dividing 200 by 81, we get 2 with a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 6229.135802
If we take 162 away from 200, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 13:
81 goes into 380 4 times with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 6229.1358024
The remainder is 56 after subtracting 324 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
If we divide 560 by 81, we get 6 and a remainder of 74.
The next digit of our result is 6. 
Result so far: 6229.13580246
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 6229.13580246 with a remaining 7.4e-08.