578648 ÷ 72 
The aim is to understand the frequency of 72 in 578648.

Let's proceed to step 1:
The number 72 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 72

Advancing to step 2:
If we divide 57 by 72, we get 0 and a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Fetch the next digit (8) from the dividend, attach it to 57 and continue: 578 / 72

On to step 3:
When dividing 578 by 72, we get 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 576 from 578, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 72

On to step 4:
26 divided by 72 is 0 with a remainder of 26.
Write down 0 as next digit of the result. 
Result so far: 80.0
Subtract 0 from 26 to get 26.
Take the next digit (4) from the dividend and append it to 26, then repeat: 264 / 72

Let's proceed to step 5:
If we divide 264 by 72, we get 3 and a remainder of 48.
Put 3 as the next digit of the answer. 
Result so far: 803.0
If we take 216 away from 264, we end up with 48.
Grab the next digit (8) from the dividend, add it to 48, then carry on: 488 / 72

Let's proceed to step 6:
The number 72 fits into 488 6 times, leaving a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 8036.0
Subtract 432 from 488 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.

Let's proceed to step 7:
When dividing 560 by 72, we get 7 with a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 8036.7
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.

Step 8:
72 goes into 560 7 times with a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 8036.77
Subtracting 504 from 560 leaves us 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.

The final outcome is 8036.77, with a leftover of 0.056.