We look at the division of 576584 by 13 
The aim is to understand the frequency of 13 in 576584.

Moving on to step 1:
If we divide 5 by 13, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 13

Moving on to step 2:
13 goes into 57 4 times with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 52 from 57 leaves us with 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 13

On to step 3:
The number 13 fits into 56 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Deduct 52 from 56 and we're left with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 13

On to step 4:
When dividing 45 by 13, we get 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 443.0
Subtracting 39 from 45 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 13

Going ahead to step 5:
If we divide 68 by 13, we get 5 and a remainder of 3.
The next digit of our result is 5. 
Result so far: 4435.0
If we take 65 away from 68, we end up with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 13

Step 6:
The number 13 fits into 34 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 44352.0
If we subtract 26 from 34, 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.

Step 7:
The number 13 fits into 80 6 times, leaving a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 44352.6
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
20 divided by 13 is 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 44352.61
Deduct 13 from 20 and we're left 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.

On to step 9:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 44352.615
Deduct 65 from 70 and we're left 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.

Let's proceed to step 10:
If we divide 50 by 13, we get 3 and a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 44352.6153
Subtracting 39 from 50 leaves us 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.

Advancing to step 11:
When dividing 110 by 13, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 44352.61538
If we subtract 104 from 110, we get 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 12:
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: 44352.615384
Subtract 52 from 60 to 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.

Going ahead to step 13:
80 divided by 13 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 44352.6153846
Deduct 78 from 80 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 14:
The number 13 fits into 20 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 44352.61538461
If we take 13 away from 20, we end up 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.

After the division, we end up with 44352.61538461 and a remainder of 7e-09.