Let's divide 802830 by 13
The aim is to understand the frequency of 13 in 802830.

Step 1:
13 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 13

Going ahead to step 2:
80 divided by 13 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 78 from 80 leaves us with 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 13

On to step 3:
When dividing 22 by 13, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 61.0
Subtract 13 from 22 to get 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 13

Step 4:
13 can be fit into 98 7 times, resulting in a remainder of 7.
The next digit of our result is 7. 
Result so far: 617.0
If we take 91 away from 98, we end up with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 13

On to step 5:
13 goes into 73 5 times with a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 6175.0
If we subtract 65 from 73, we get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 13

Advancing to step 6:
If we divide 80 by 13, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 61756.0
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 7:
If we divide 20 by 13, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 61756.1
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.

Advancing to step 8:
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: 61756.15
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.

Let's proceed to step 9:
13 goes into 50 3 times with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 61756.153
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.

Let's proceed to step 10:
110 divided by 13 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 61756.1538
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.

Advancing to step 11:
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: 61756.15384
Deduct 52 from 60 and we're left 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.

Let's proceed to step 12:
The number 13 fits into 80 6 times, leaving a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 61756.153846
Subtracting 78 from 80 leaves us 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.

Let's proceed to step 13:
The number 13 fits into 20 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 61756.1538461
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 14:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 61756.15384615
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.

The final outcome is 61756.15384615, with a leftover of 5e-09.