We're dividing 41385420 by 13 
The aim is to understand the frequency of 13 in 41385420.

Moving on to step 1:
When dividing 4 by 13, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 13

Let's proceed to step 2:
The number 13 fits into 41 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 39 from 41 leaves us with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 13

Advancing to step 3:
The number 13 fits into 23 1 times, leaving a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 31.0
The remainder is 10 after subtracting 13 from 23.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 13

Step 4:
When dividing 108 by 13, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 318.0
Subtracting 104 from 108 leaves us with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 13

Going ahead to step 5:
The number 13 fits into 45 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 3183.0
The remainder is 6 after subtracting 39 from 45.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 13

Step 6:
When dividing 64 by 13, we get 4 with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 31834.0
If we take 52 away from 64, we end up with 12.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 13

Advancing to step 7:
13 can be fit into 122 9 times, resulting in a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 318349.0
If we subtract 117 from 122, we get 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 13

Advancing to step 8:
13 can be fit into 50 3 times, resulting in a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3183493.0
Subtract 39 from 50 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.

On to step 9:
13 can be fit into 110 8 times, resulting in a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 3183493.8
Deduct 104 from 110 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
13 goes into 60 4 times with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 3183493.84
If we subtract 52 from 60, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
When dividing 80 by 13, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 3183493.846
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
20 divided by 13 is 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 3183493.8461
Subtracting 13 from 20 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 3183493.84615
If we take 65 away from 70, we end up with 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 14:
13 can be fit into 50 3 times, resulting in a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3183493.846153
Deduct 39 from 50 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.

Let's proceed to step 15:
110 divided by 13 is 8 with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 3183493.8461538
Subtracting 104 from 110 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 16:
60 divided by 13 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 3183493.84615384
The remainder is 8 after subtracting 52 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 3183493.84615384, with a leftover of 8e-09.