868192 ÷ 72 
The aim is to understand the frequency of 72 in 868192.

Let's proceed to step 1:
The number 72 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 72

Step 2:
72 can be fit into 86 1 times, resulting in a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 14 after subtracting 72 from 86.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 72

On to step 3:
72 goes into 148 2 times with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 4 after subtracting 144 from 148.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 72

On to step 4:
41 divided by 72 is 0 with a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 120.0
If we take 0 away from 41, we end up with 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 72

Step 5:
72 can be fit into 419 5 times, resulting in a remainder of 59.
The number 5 becomes the next digit in our result. 
Result so far: 1205.0
Subtracting 360 from 419 leaves us with 59.
Bring next digit (2) of the dividend behind the 59 and repeat the process: 592 / 72

Moving on to step 6:
When dividing 592 by 72, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 12058.0
If we subtract 576 from 592, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
72 can be fit into 160 2 times, resulting in a remainder of 16.
The next digit of our result is 2. 
Result so far: 12058.2
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
The number 72 fits into 160 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 12058.22
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 12058.22, with a leftover of 0.016.