We're dividing 489363 by 72 
The aim is to understand the frequency of 72 in 489363.

On to step 1:
72 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 72

Step 2:
The number 72 fits into 48 0 times, leaving a remainder of 48.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 48, we get 48.
Grab the next digit (9) from the dividend, add it to 48, then carry on: 489 / 72

Advancing to step 3:
72 goes into 489 6 times with a remainder of 57.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 432 from 489 and we're left with 57.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 72

Step 4:
When dividing 573 by 72, we get 7 with a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
Subtract 504 from 573 to get 69.
Take the next digit (6) from the dividend and append it to 69, then repeat: 696 / 72

Advancing to step 5:
72 can be fit into 696 9 times, resulting in a remainder of 48.
Put 9 as the next digit of the answer. 
Result so far: 679.0
Subtract 648 from 696 to get 48.
Append the next digit (3) from the dividend to 48 and continue with: 483 / 72

Going ahead to step 6:
If we divide 483 by 72, we get 6 and a remainder of 51.
Record the quotient 6 as the next digit in the result. 
Result so far: 6796.0
Subtract 432 from 483 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
If we divide 510 by 72, we get 7 and a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 6796.7
If we subtract 504 from 510, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
72 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 6796.7
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
72 can be fit into 600 8 times, resulting in a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 6796.708
Subtract 576 from 600 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
When dividing 240 by 72, we get 3 with a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 6796.7083
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
72 can be fit into 240 3 times, resulting in a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 6796.70833
Deduct 216 from 240 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 6796.70833 and a remainder of 2.4e-05.