We're dividing 917940 by 72 
The aim is to understand the frequency of 72 in 917940.

Going ahead to step 1:
9 divided by 72 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 72

Let's proceed to step 2:
When dividing 91 by 72, we get 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 72 from 91 leaves us with 19.
Append the next digit (7) from the dividend to 19 and continue with: 197 / 72

Advancing to step 3:
197 divided by 72 is 2 with a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 144 from 197 to get 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 72

Going ahead to step 4:
72 can be fit into 539 7 times, resulting in a remainder of 35.
The next digit of our result is 7. 
Result so far: 127.0
Subtract 504 from 539 to get 35.
Bring next digit (4) of the dividend behind the 35 and repeat the process: 354 / 72

Step 5:
354 divided by 72 is 4 with a remainder of 66.
The next digit of our result is 4. 
Result so far: 1274.0
The remainder is 66 after subtracting 288 from 354.
Append the next digit (0) from the dividend to 66 and continue with: 660 / 72

Advancing to step 6:
If we divide 660 by 72, we get 9 and a remainder of 12.
The next digit of our result is 9. 
Result so far: 12749.0
Subtracting 648 from 660 leaves us 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.

Going ahead to step 7:
When dividing 120 by 72, we get 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 12749.1
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:
480 divided by 72 is 6 with a remainder of 48.
The next digit of our result is 6. 
Result so far: 12749.16
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.

On to step 9:
72 can be fit into 480 6 times, resulting in a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 12749.166
If we take 432 away from 480, we end up 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.

The quotient of the division is 12749.166, and the remainder is 0.0048.