524886 divided by 13 
The aim is to understand the frequency of 13 in 524886.

On to step 1:
13 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 13

Going ahead to step 2:
If we divide 52 by 13, we get 4 and a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 52 from 52 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 13

On to step 3:
13 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 40.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 13

Moving on to step 4:
13 goes into 48 3 times with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 403.0
Deduct 39 from 48 and we're left with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 13

Let's proceed to step 5:
The number 13 fits into 98 7 times, leaving a remainder of 7.
The next digit of our result is 7. 
Result so far: 4037.0
Subtracting 91 from 98 leaves us with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 13

Advancing to step 6:
The number 13 fits into 76 5 times, leaving a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 40375.0
If we take 65 away from 76, we end up 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.

Moving on to step 7:
110 divided by 13 is 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 40375.8
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 8:
13 goes into 60 4 times with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 40375.84
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.

Step 9:
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: 40375.846
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 10:
If we divide 20 by 13, we get 1 and a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 40375.8461
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.

Going ahead to step 11:
13 goes into 70 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 40375.84615
The remainder is 5 after subtracting 65 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 12:
When dividing 50 by 13, we get 3 with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 40375.846153
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.

Moving on to step 13:
13 can be fit into 110 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 40375.8461538
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.

Let's proceed to step 14:
When dividing 60 by 13, we get 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 40375.84615384
Subtracting 52 from 60 leaves us with 8.
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 40375.84615384, with a leftover of 8e-09.