We divide 374237 by 15
The aim is to understand the frequency of 15 in 374237.

On to step 1:
The number 15 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 15

Advancing to step 2:
37 divided by 15 is 2 with a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 7 after subtracting 30 from 37.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 15

Let's proceed to step 3:
15 goes into 74 4 times with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we subtract 60 from 74, we get 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 15

Moving on to step 4:
If we divide 142 by 15, we get 9 and a remainder of 7.
The next digit of our result is 9. 
Result so far: 249.0
Deduct 135 from 142 and we're left with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 15

Let's proceed to step 5:
The number 15 fits into 73 4 times, leaving a remainder of 13.
The next digit of our result is 4. 
Result so far: 2494.0
Subtract 60 from 73 to get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 15

On to step 6:
The number 15 fits into 137 9 times, leaving a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 24949.0
Subtracting 135 from 137 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
15 can be fit into 20 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 24949.1
Deduct 15 from 20 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.

Moving on to step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 24949.13
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.

Step 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 24949.133
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.

The final outcome is 24949.133, with a leftover of 0.0005.