We look at the division of 751008 by 72 
The aim is to understand the frequency of 72 in 751008.

Step 1:
The number 72 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 72

Step 2:
72 goes into 75 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 72 from 75 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 72

Advancing to step 3:
The number 72 fits into 31 0 times, leaving a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 31 to get 31.
Bring next digit (0) of the dividend behind the 31 and repeat the process: 310 / 72

On to step 4:
When dividing 310 by 72, we get 4 with a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 104.0
Subtract 288 from 310 to get 22.
Append the next digit (0) from the dividend to 22 and continue with: 220 / 72

Advancing to step 5:
72 goes into 220 3 times with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 1043.0
Deduct 216 from 220 and we're left with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 72

On to step 6:
If we divide 48 by 72, we get 0 and a remainder of 48.
The number 0 becomes the next digit in our result. 
Result so far: 10430.0
If we subtract 0 from 48, 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.

Advancing to step 7:
The number 72 fits into 480 6 times, leaving a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 10430.6
The remainder is 48 after subtracting 432 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
When dividing 480 by 72, we get 6 with a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 10430.66
Subtract 432 from 480 to 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 10430.66 with a remainder of 0.048.