874456 ÷ 72 
The aim is to understand the frequency of 72 in 874456.

Going ahead to step 1:
8 divided by 72 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 72

Advancing to step 2:
If we divide 87 by 72, we get 1 and a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 72 from 87, we get 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 72

Going ahead to step 3:
72 goes into 154 2 times with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 144 from 154, we get 10.
Grab the next digit (4) from the dividend, add it to 10, then carry on: 104 / 72

Step 4:
72 goes into 104 1 times with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 121.0
Subtract 72 from 104 to get 32.
Append the next digit (5) from the dividend to 32 and continue with: 325 / 72

Moving on to step 5:
72 goes into 325 4 times with a remainder of 37.
The next digit of our result is 4. 
Result so far: 1214.0
Subtracting 288 from 325 leaves us with 37.
Bring next digit (6) of the dividend behind the 37 and repeat the process: 376 / 72

Let's proceed to step 6:
376 divided by 72 is 5 with a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 12145.0
If we subtract 360 from 376, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
72 goes into 160 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 12145.2
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
160 divided by 72 is 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 12145.22
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 12145.22 and a remainder of 0.016.