We divide 401494 by 15
The aim is to understand the frequency of 15 in 401494.

Let's proceed to step 1:
If we divide 4 by 15, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 15

On to step 2:
When dividing 40 by 15, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 30 from 40, we get 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 15

Moving on to step 3:
15 goes into 101 6 times with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 26.0
Subtract 90 from 101 to get 11.
Bring next digit (4) of the dividend behind the 11 and repeat the process: 114 / 15

Advancing to step 4:
15 goes into 114 7 times with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 267.0
The remainder is 9 after subtracting 105 from 114.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 15

Going ahead to step 5:
When dividing 99 by 15, we get 6 with a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 2676.0
If we subtract 90 from 99, we get 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 15

Moving on to step 6:
The number 15 fits into 94 6 times, leaving a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 26766.0
Deduct 90 from 94 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
The number 15 fits into 40 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 26766.2
The remainder is 10 after subtracting 30 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 26766.26
If we take 90 away from 100, we end up 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.

Advancing to step 9:
15 can be fit into 100 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 26766.266
Subtract 90 from 100 to 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.

The final result is 26766.266 with a remainder of 0.001.