450081 ÷ 13 
The aim is to understand the frequency of 13 in 450081.

Moving on to step 1:
13 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 13

Moving on to step 2:
When dividing 45 by 13, we get 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 39 from 45 leaves us with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 13

On to step 3:
60 divided by 13 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 34.0
If we subtract 52 from 60, we get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 13

Moving on to step 4:
13 goes into 80 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 346.0
Subtract 78 from 80 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 13

Advancing to step 5:
The number 13 fits into 28 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 3462.0
If we subtract 26 from 28, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 13

Let's proceed to step 6:
13 can be fit into 21 1 times, resulting in a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 34621.0
Subtracting 13 from 21 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.

Advancing to step 7:
The number 13 fits into 80 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 34621.6
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.

Step 8:
If we divide 20 by 13, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 34621.61
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.

Moving on to step 9:
When dividing 70 by 13, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 34621.615
Subtract 65 from 70 to 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.

On to step 10:
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: 34621.6153
The remainder is 11 after subtracting 39 from 50.
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.
Use 8 as the next digit of our solution. 
Result so far: 34621.61538
Deduct 104 from 110 and we're left 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.

Step 12:
60 divided by 13 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 34621.615384
If we take 52 away from 60, we end up 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.

On to step 13:
80 divided by 13 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 34621.6153846
If we subtract 78 from 80, we 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 14:
20 divided by 13 is 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 34621.61538461
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.

The final outcome is 34621.61538461, with a leftover of 7e-09.