Let's divide 626410 by 15
The aim is to understand the frequency of 15 in 626410.

Advancing to step 1:
When dividing 6 by 15, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 15

On to step 2:
The number 15 fits into 62 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 2 after subtracting 60 from 62.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 15

Going ahead to step 3:
15 goes into 26 1 times with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Subtract 15 from 26 to get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 15

Let's proceed to step 4:
The number 15 fits into 114 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 417.0
The remainder is 9 after subtracting 105 from 114.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 15

Step 5:
15 goes into 91 6 times with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 4176.0
Subtract 90 from 91 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 15

Advancing to step 6:
15 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 41760.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
100 divided by 15 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 41760.6
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 15, we get 6 and a remainder of 10.
The next digit of our result is 6. 
Result so far: 41760.66
If we subtract 90 from 100, 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.

Our division results in 41760.66 with a remaining 0.01.