We're dividing 16594330 by 13 
The aim is to understand the frequency of 13 in 16594330.

Going ahead to step 1:
If we divide 1 by 13, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 13

Advancing to step 2:
If we divide 16 by 13, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 13 from 16 and we're left with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 13

Let's proceed to step 3:
13 goes into 35 2 times with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 26 from 35, we get 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 13

Moving on to step 4:
If we divide 99 by 13, we get 7 and a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtracting 91 from 99 leaves us with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 13

On to step 5:
The number 13 fits into 84 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 1276.0
Deduct 78 from 84 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 13

On to step 6:
13 can be fit into 63 4 times, resulting in a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 12764.0
Deduct 52 from 63 and we're left with 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 13

On to step 7:
When dividing 113 by 13, we get 8 with a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 127648.0
Subtract 104 from 113 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 13

Step 8:
90 divided by 13 is 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 1276486.0
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 9:
If we divide 120 by 13, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 1276486.9
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 10:
13 can be fit into 30 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1276486.92
The remainder is 4 after subtracting 26 from 30.
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 11:
When dividing 40 by 13, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 1276486.923
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 12:
13 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1276486.923
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
The number 13 fits into 100 7 times, leaving a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 1276486.92307
Subtract 91 from 100 to 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.

Step 14:
13 can be fit into 90 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 1276486.923076
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 15:
The number 13 fits into 120 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 1276486.9230769
If we take 117 away from 120, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 16:
The number 13 fits into 30 2 times, leaving a remainder of 4.
The next digit of our result is 2. 
Result so far: 1276486.92307692
If we take 26 away from 30, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 1276486.92307692 with a remainder of 4e-09.