We divide 154020 by 72
The aim is to understand the frequency of 72 in 154020.

Moving on to step 1:
When dividing 1 by 72, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 72

Advancing to step 2:
The number 72 fits into 15 0 times, leaving a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 72

Going ahead to step 3:
If we divide 154 by 72, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 144 from 154 and we're left with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 72

Step 4:
72 goes into 100 1 times with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 21.0
The remainder is 28 after subtracting 72 from 100.
Fetch the next digit (2) from the dividend, attach it to 28 and continue: 282 / 72

Advancing to step 5:
72 goes into 282 3 times with a remainder of 66.
Put 3 as the next digit of the answer. 
Result so far: 213.0
Subtract 216 from 282 to get 66.
Fetch the next digit (0) from the dividend, attach it to 66 and continue: 660 / 72

Moving on to step 6:
72 can be fit into 660 9 times, resulting in a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 2139.0
Deduct 648 from 660 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
120 divided by 72 is 1 with a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 2139.1
Deduct 72 from 120 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
If we divide 480 by 72, we get 6 and a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 2139.16
Subtracting 432 from 480 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 9:
72 can be fit into 480 6 times, resulting in a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 2139.166
If we subtract 432 from 480, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final result is 2139.166 with a remainder of 0.0048.