Let's divide 875246 by 81
The aim is to understand the frequency of 81 in 875246.

On to step 1:
8 divided by 81 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 81

Advancing to step 2:
When dividing 87 by 81, we get 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 81 from 87 leaves us with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 81

Let's proceed to step 3:
65 divided by 81 is 0 with a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 65 and we're left with 65.
Bring next digit (2) of the dividend behind the 65 and repeat the process: 652 / 81

Moving on to step 4:
The number 81 fits into 652 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 108.0
Subtract 648 from 652 to get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 81

Moving on to step 5:
The number 81 fits into 44 0 times, leaving a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 1080.0
Subtract 0 from 44 to get 44.
Bring next digit (6) of the dividend behind the 44 and repeat the process: 446 / 81

Moving on to step 6:
446 divided by 81 is 5 with a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 10805.0
Deduct 405 from 446 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
When dividing 410 by 81, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 10805.5
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
81 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 10805.5
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
The number 81 fits into 500 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 10805.506
If we subtract 486 from 500, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
81 goes into 140 1 times with a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 10805.5061
Deduct 81 from 140 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 11:
81 can be fit into 590 7 times, resulting in a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 10805.50617
If we take 567 away from 590, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 12:
If we divide 230 by 81, we get 2 and a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 10805.506172
Subtracting 162 from 230 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 13:
The number 81 fits into 680 8 times, leaving a remainder of 32.
The next digit of our result is 8. 
Result so far: 10805.5061728
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 14:
If we divide 320 by 81, we get 3 and a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 10805.50617283
If we take 243 away from 320, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

The final outcome is 10805.50617283, with a leftover of 7.7e-08.