Let's divide 305550 by 15
The aim is to understand the frequency of 15 in 305550.

Let's proceed to step 1:
15 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 15

Advancing to step 2:
If we divide 30 by 15, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 30 away from 30, we end up with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 15

Going ahead to step 3:
The number 15 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 5, we get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 15

Moving on to step 4:
The number 15 fits into 55 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 203.0
If we take 45 away from 55, we end up with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 15

On to step 5:
When dividing 105 by 15, we get 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 2037.0
Subtract 105 from 105 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 15

Step 6:
If we divide 0 by 15, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20370.0
Subtracting 0 from 0 leaves us with 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:
0 divided by 15 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20370.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 20370.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 20370.0 with a remaining 0.0.