66722 ÷ 15 
The aim is to understand the frequency of 15 in 66722.

Moving on to step 1:
When dividing 6 by 15, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 15

Let's proceed to step 2:
15 can be fit into 66 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 60 from 66 to get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 15

Moving on to step 3:
67 divided by 15 is 4 with a remainder of 7.
The next digit of our result is 4. 
Result so far: 44.0
If we take 60 away from 67, we end up with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 15

Step 4:
72 divided by 15 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 444.0
The remainder is 12 after subtracting 60 from 72.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 15

Let's proceed to step 5:
The number 15 fits into 122 8 times, leaving a remainder of 2.
The next digit of our result is 8. 
Result so far: 4448.0
Deduct 120 from 122 and we're left 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.

Step 6:
20 divided by 15 is 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 4448.1
The remainder is 5 after subtracting 15 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
50 divided by 15 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 4448.13
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.

Step 8:
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: 4448.133
Subtracting 45 from 50 leaves us 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.

In conclusion, the division gives 4448.133 with a balance of 0.0005.