We're dividing 670604 by 72 
The aim is to understand the frequency of 72 in 670604.

Step 1:
The number 72 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 72

Going ahead to step 2:
If we divide 67 by 72, we get 0 and a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Bring next digit (0) of the dividend behind the 67 and repeat the process: 670 / 72

Let's proceed to step 3:
If we divide 670 by 72, we get 9 and a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 648 from 670 and we're left with 22.
Fetch the next digit (6) from the dividend, attach it to 22 and continue: 226 / 72

Going ahead to step 4:
226 divided by 72 is 3 with a remainder of 10.
The next digit of our result is 3. 
Result so far: 93.0
If we take 216 away from 226, we end up with 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 72

Advancing to step 5:
When dividing 100 by 72, we get 1 with a remainder of 28.
The next digit of our result is 1. 
Result so far: 931.0
The remainder is 28 after subtracting 72 from 100.
Grab the next digit (4) from the dividend, add it to 28, then carry on: 284 / 72

Step 6:
The number 72 fits into 284 3 times, leaving a remainder of 68.
The next digit of our result is 3. 
Result so far: 9313.0
If we subtract 216 from 284, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 7:
When dividing 680 by 72, we get 9 with a remainder of 32.
Record the quotient 9 as the next digit in the result. 
Result so far: 9313.9
Deduct 648 from 680 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
72 goes into 320 4 times with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 9313.94
If we take 288 away from 320, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
72 goes into 320 4 times with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 9313.944
Subtracting 288 from 320 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 9313.944 with a balance of 0.0032.