We look at the division of 623007 by 81 
The aim is to understand the frequency of 81 in 623007.

Advancing to step 1:
When dividing 6 by 81, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 81

On to step 2:
When dividing 62 by 81, we get 0 with a remainder of 62.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 62, we get 62.
Bring next digit (3) of the dividend behind the 62 and repeat the process: 623 / 81

Moving on to step 3:
81 can be fit into 623 7 times, resulting in a remainder of 56.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 567 from 623 and we're left with 56.
Append the next digit (0) from the dividend to 56 and continue with: 560 / 81

Step 4:
560 divided by 81 is 6 with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 76.0
Deduct 486 from 560 and we're left with 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 81

Going ahead to step 5:
81 goes into 740 9 times with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 769.0
Subtract 729 from 740 to get 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 81

Moving on to step 6:
81 can be fit into 117 1 times, resulting in a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 7691.0
If we take 81 away from 117, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 7:
81 goes into 360 4 times with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 7691.4
Subtracting 324 from 360 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 8:
When dividing 360 by 81, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 7691.44
If we take 324 away from 360, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

In conclusion, the division gives 7691.44 with a balance of 0.036.