We divide 407164 by 15
The aim is to understand the frequency of 15 in 407164.

On to step 1:
15 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 15

Step 2:
The number 15 fits into 40 2 times, leaving a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 30 away from 40, we end up with 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 15

Moving on to step 3:
15 can be fit into 107 7 times, resulting in a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Subtract 105 from 107 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 15

Going ahead to step 4:
15 goes into 21 1 times with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 271.0
The remainder is 6 after subtracting 15 from 21.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 15

Moving on to step 5:
66 divided by 15 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 2714.0
Subtracting 60 from 66 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 15

Step 6:
If we divide 64 by 15, we get 4 and a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 27144.0
The remainder is 4 after subtracting 60 from 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
15 goes into 40 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 27144.2
If we take 30 away from 40, 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 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 27144.26
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
If we divide 100 by 15, we get 6 and a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 27144.266
Deduct 90 from 100 and we're left 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.

Our division results in 27144.266 with a remaining 0.001.