300320 ÷ 72 
The aim is to understand the frequency of 72 in 300320.

Advancing to step 1:
3 divided by 72 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 72

Advancing to step 2:
72 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Fetch the next digit (0) from the dividend, attach it to 30 and continue: 300 / 72

Moving on to step 3:
The number 72 fits into 300 4 times, leaving a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 12 after subtracting 288 from 300.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 72

Step 4:
72 can be fit into 123 1 times, resulting in a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 41.0
The remainder is 51 after subtracting 72 from 123.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 72

Moving on to step 5:
72 can be fit into 512 7 times, resulting in a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 417.0
The remainder is 8 after subtracting 504 from 512.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 72

Advancing to step 6:
When dividing 80 by 72, we get 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 4171.0
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
When dividing 80 by 72, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 4171.1
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
72 can be fit into 80 1 times, resulting in a remainder of 8.
The next digit of our result is 1. 
Result so far: 4171.11
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 4171.11 with a balance of 0.008.