We divide 186254 by 15
The aim is to understand the frequency of 15 in 186254.

Moving on to step 1:
15 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 15

On to step 2:
If we divide 18 by 15, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 15 away from 18, we end up with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 15

Step 3:
When dividing 36 by 15, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 30 from 36 and we're left with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 15

Going ahead to step 4:
The number 15 fits into 62 4 times, leaving a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 124.0
Deduct 60 from 62 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 15

Going ahead to step 5:
If we divide 25 by 15, we get 1 and a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1241.0
If we take 15 away from 25, we end up with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 15

Moving on to step 6:
15 can be fit into 104 6 times, resulting in a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 12416.0
Deduct 90 from 104 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
When dividing 140 by 15, we get 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 12416.9
The remainder is 5 after subtracting 135 from 140.
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 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 12416.93
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 12416.933
Subtract 45 from 50 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.

Our division results in 12416.933 with a remaining 0.0005.