We're dividing 908125 by 13 
The aim is to understand the frequency of 13 in 908125.

Moving on to step 1:
13 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 13

Advancing to step 2:
If we divide 90 by 13, we get 6 and a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 78 from 90, we get 12.
Bring next digit (8) of the dividend behind the 12 and repeat the process: 128 / 13

Step 3:
The number 13 fits into 128 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 69.0
If we take 117 away from 128, we end up with 11.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 13

Step 4:
111 divided by 13 is 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 698.0
The remainder is 7 after subtracting 104 from 111.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 13

Going ahead to step 5:
13 can be fit into 72 5 times, resulting in a remainder of 7.
The next digit of our result is 5. 
Result so far: 6985.0
The remainder is 7 after subtracting 65 from 72.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 13

On to step 6:
13 goes into 75 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 69855.0
If we subtract 65 from 75, we 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.

Let's proceed to step 7:
When dividing 100 by 13, we get 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 69855.7
Subtracting 91 from 100 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
90 divided by 13 is 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 69855.76
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.

Going ahead to step 9:
The number 13 fits into 120 9 times, leaving a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 69855.769
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 10:
When dividing 30 by 13, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 69855.7692
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.

Step 11:
If we divide 40 by 13, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 69855.76923
Deduct 39 from 40 and we're left 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.

Moving on to step 12:
When dividing 10 by 13, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 69855.76923
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.

Going ahead to step 13:
If we divide 100 by 13, we get 7 and a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 69855.7692307
If we take 91 away from 100, we end up with 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 14:
When dividing 90 by 13, we get 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 69855.76923076
If we take 78 away from 90, we end up 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.

The final result is 69855.76923076 with a remainder of 1.2e-08.