549506 ÷ 72 
The aim is to understand the frequency of 72 in 549506.

On to step 1:
If we divide 5 by 72, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 72

Step 2:
The number 72 fits into 54 0 times, leaving a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Include the next digit (9) from the dividend after 54, then repeat: 549 / 72

Let's proceed to step 3:
72 goes into 549 7 times with a remainder of 45.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 504 from 549, we get 45.
Bring next digit (5) of the dividend behind the 45 and repeat the process: 455 / 72

Advancing to step 4:
72 can be fit into 455 6 times, resulting in a remainder of 23.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
If we take 432 away from 455, we end up with 23.
Fetch the next digit (0) from the dividend, attach it to 23 and continue: 230 / 72

On to step 5:
When dividing 230 by 72, we get 3 with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 763.0
If we take 216 away from 230, we end up with 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 72

Moving on to step 6:
72 goes into 146 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 7632.0
If we subtract 144 from 146, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
20 divided by 72 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7632.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
72 goes into 200 2 times with a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 7632.02
Deduct 144 from 200 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
560 divided by 72 is 7 with a remainder of 56.
The number 7 becomes the next digit in our result. 
Result so far: 7632.027
Subtract 504 from 560 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 10:
When dividing 560 by 72, we get 7 with a remainder of 56.
The next digit of our result is 7. 
Result so far: 7632.0277
The remainder is 56 after subtracting 504 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 7632.0277 and a remainder of 0.00056.