We're dividing 140443 by 72 
The aim is to understand the frequency of 72 in 140443.

Advancing to step 1:
1 divided by 72 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 72

On to step 2:
72 goes into 14 0 times with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 72

Moving on to step 3:
If we divide 140 by 72, we get 1 and a remainder of 68.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 68 after subtracting 72 from 140.
Take the next digit (4) from the dividend and append it to 68, then repeat: 684 / 72

Advancing to step 4:
72 goes into 684 9 times with a remainder of 36.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we subtract 648 from 684, we get 36.
Grab the next digit (4) from the dividend, add it to 36, then carry on: 364 / 72

Moving on to step 5:
364 divided by 72 is 5 with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
If we take 360 away from 364, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 72

Advancing to step 6:
43 divided by 72 is 0 with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 1950.0
The remainder is 43 after subtracting 0 from 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
If we divide 430 by 72, we get 5 and a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 1950.5
If we take 360 away from 430, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
700 divided by 72 is 9 with a remainder of 52.
Write down 9 as next digit of the result. 
Result so far: 1950.59
Subtract 648 from 700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 9:
When dividing 520 by 72, we get 7 with a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 1950.597
The remainder is 16 after subtracting 504 from 520.
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 10:
72 can be fit into 160 2 times, resulting in a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 1950.5972
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.

Step 11:
72 goes into 160 2 times with a remainder of 16.
The next digit of our result is 2. 
Result so far: 1950.59722
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 1950.59722 with a balance of 1.6e-05.