We look at the division of 54573822 by 13 
The aim is to understand the frequency of 13 in 54573822.

Moving on to step 1:
13 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 13

Moving on to step 2:
13 goes into 54 4 times with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 2 after subtracting 52 from 54.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 13

Advancing to step 3:
25 divided by 13 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 41.0
If we take 13 away from 25, we end up with 12.
Append the next digit (7) from the dividend to 12 and continue with: 127 / 13

Step 4:
The number 13 fits into 127 9 times, leaving a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 419.0
Deduct 117 from 127 and we're left with 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 13

Step 5:
13 goes into 103 7 times with a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 4197.0
Subtract 91 from 103 to get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 13

Going ahead to step 6:
13 can be fit into 128 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 41979.0
The remainder is 11 after subtracting 117 from 128.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 13

Going ahead to step 7:
112 divided by 13 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 419798.0
Subtract 104 from 112 to get 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 13

Let's proceed to step 8:
13 goes into 82 6 times with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 4197986.0
Subtract 78 from 82 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
40 divided by 13 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 4197986.3
If we take 39 away from 40, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 10:
13 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 4197986.3
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
If we divide 100 by 13, we get 7 and a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 4197986.307
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 12:
13 can be fit into 90 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 4197986.3076
If we subtract 78 from 90, we 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.

Let's proceed to step 13:
If we divide 120 by 13, we get 9 and a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 4197986.30769
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 14:
13 can be fit into 30 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 4197986.307692
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 15:
13 goes into 40 3 times with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 4197986.3076923
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 16:
When dividing 10 by 13, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 4197986.3076923
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 4197986.3076923 with a balance of 1e-08.