We look at the division of 81393689 by 41 
The aim is to understand the frequency of 41 in 81393689.

Step 1:
41 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 41

Let's proceed to step 2:
41 can be fit into 81 1 times, resulting in a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 40 after subtracting 41 from 81.
Bring next digit (3) of the dividend behind the 40 and repeat the process: 403 / 41

Going ahead to step 3:
41 can be fit into 403 9 times, resulting in a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we take 369 away from 403, we end up with 34.
Fetch the next digit (9) from the dividend, attach it to 34 and continue: 349 / 41

On to step 4:
The number 41 fits into 349 8 times, leaving a remainder of 21.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
If we subtract 328 from 349, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 41

Going ahead to step 5:
If we divide 213 by 41, we get 5 and a remainder of 8.
The next digit of our result is 5. 
Result so far: 1985.0
The remainder is 8 after subtracting 205 from 213.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 41

Advancing to step 6:
41 goes into 86 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 19852.0
Deduct 82 from 86 and we're left with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 41

On to step 7:
The number 41 fits into 48 1 times, leaving a remainder of 7.
The next digit of our result is 1. 
Result so far: 198521.0
Subtracting 41 from 48 leaves us with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 41

Going ahead to step 8:
41 goes into 79 1 times with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 1985211.0
The remainder is 38 after subtracting 41 from 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 9:
If we divide 380 by 41, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 1985211.9
The remainder is 11 after subtracting 369 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 10:
The number 41 fits into 110 2 times, leaving a remainder of 28.
The next digit of our result is 2. 
Result so far: 1985211.92
Subtract 82 from 110 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
280 divided by 41 is 6 with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 1985211.926
If we subtract 246 from 280, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 12:
If we divide 340 by 41, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 1985211.9268
Subtract 328 from 340 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
41 goes into 120 2 times with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 1985211.92682
Subtracting 82 from 120 leaves us 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.

Let's proceed to step 14:
41 can be fit into 380 9 times, resulting in a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 1985211.926829
Deduct 369 from 380 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 15:
When dividing 110 by 41, we get 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 1985211.9268292
Subtract 82 from 110 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 16:
41 goes into 280 6 times with a remainder of 34.
The next digit of our result is 6. 
Result so far: 1985211.92682926
If we take 246 away from 280, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

In conclusion, the division gives 1985211.92682926 with a balance of 3.4e-08.