Let's divide 647823 by 13
The aim is to understand the frequency of 13 in 647823.

Advancing to step 1:
When dividing 6 by 13, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 13

Moving on to step 2:
The number 13 fits into 64 4 times, leaving a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 52 from 64 leaves us with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 13

Going ahead to step 3:
The number 13 fits into 127 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 49.0
Deduct 117 from 127 and we're left with 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 13

Step 4:
13 goes into 108 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 498.0
Subtract 104 from 108 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 13

Going ahead to step 5:
42 divided by 13 is 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 4983.0
The remainder is 3 after subtracting 39 from 42.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 13

Advancing to step 6:
The number 13 fits into 33 2 times, leaving a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 49832.0
If we take 26 away from 33, 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.

On to step 7:
If we divide 70 by 13, we get 5 and a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 49832.5
If we subtract 65 from 70, we get 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 8:
When dividing 50 by 13, we get 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 49832.53
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.

Going ahead to step 9:
If we divide 110 by 13, we get 8 and a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 49832.538
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.

On to step 10:
13 can be fit into 60 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 49832.5384
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.

Moving on to step 11:
13 goes into 80 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 49832.53846
Subtract 78 from 80 to get 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 12:
When dividing 20 by 13, we get 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 49832.538461
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.

On to step 13:
When dividing 70 by 13, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 49832.5384615
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.

Step 14:
50 divided by 13 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 49832.53846153
If we subtract 39 from 50, we 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.

The final outcome is 49832.53846153, with a leftover of 1.1e-08.