We're dividing 374933 by 15 
The aim is to understand the frequency of 15 in 374933.

Step 1:
15 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 15

Advancing to step 2:
When dividing 37 by 15, we get 2 with a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 30 from 37 and we're left with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 15

Advancing to step 3:
74 divided by 15 is 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtract 60 from 74 to get 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 15

Advancing to step 4:
15 can be fit into 149 9 times, resulting in a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 249.0
If we subtract 135 from 149, we get 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 15

Moving on to step 5:
15 goes into 143 9 times with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 2499.0
If we take 135 away from 143, we end up with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 15

Moving on to step 6:
15 goes into 83 5 times with a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 24995.0
Subtracting 75 from 83 leaves us 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.

Advancing to step 7:
15 goes into 80 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 24995.5
Deduct 75 from 80 and we're left with 5.
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.
Write down 3 as next digit of the result. 
Result so far: 24995.53
Deduct 45 from 50 and we're left with 5.
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:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The next digit of our result is 3. 
Result so far: 24995.533
Deduct 45 from 50 and we're left with 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 24995.533 with a remaining 0.0005.