Let's divide 121112 by 72
The aim is to understand the frequency of 72 in 121112.

Step 1:
1 divided by 72 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 72

Going ahead to step 2:
12 divided by 72 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 72

On to step 3:
121 divided by 72 is 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 72 from 121, we get 49.
Fetch the next digit (1) from the dividend, attach it to 49 and continue: 491 / 72

Moving on to step 4:
72 goes into 491 6 times with a remainder of 59.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 432 from 491, we get 59.
Grab the next digit (1) from the dividend, add it to 59, then carry on: 591 / 72

Let's proceed to step 5:
The number 72 fits into 591 8 times, leaving a remainder of 15.
Use 8 as the next digit of our solution. 
Result so far: 168.0
The remainder is 15 after subtracting 576 from 591.
Include the next digit (2) from the dividend after 15, then repeat: 152 / 72

Let's proceed to step 6:
152 divided by 72 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 1682.0
If we subtract 144 from 152, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
80 divided by 72 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1682.1
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
72 goes into 80 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 1682.11
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 1682.11 with a balance of 0.008.