We divide 789451 by 13
The aim is to understand the frequency of 13 in 789451.

Step 1:
7 divided by 13 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 13

Let's proceed to step 2:
13 can be fit into 78 6 times, resulting in a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 78 from 78, we get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 13

Advancing to step 3:
9 divided by 13 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 60.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 13

On to step 4:
When dividing 94 by 13, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 607.0
The remainder is 3 after subtracting 91 from 94.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 13

Going ahead to step 5:
When dividing 35 by 13, we get 2 with a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 6072.0
The remainder is 9 after subtracting 26 from 35.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 13

On to step 6:
When dividing 91 by 13, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 60727.0
Subtract 91 from 91 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 13 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 60727.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
13 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 60727.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 60727.0, with a leftover of 0.0.