We're dividing 159583 by 72 
The aim is to understand the frequency of 72 in 159583.

Going ahead to step 1:
When dividing 1 by 72, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 72

Step 2:
If we divide 15 by 72, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 72

Going ahead to step 3:
If we divide 159 by 72, we get 2 and a remainder of 15.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 144 from 159 leaves us with 15.
Include the next digit (5) from the dividend after 15, then repeat: 155 / 72

On to step 4:
72 can be fit into 155 2 times, resulting in a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we subtract 144 from 155, we get 11.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 72

Let's proceed to step 5:
72 goes into 118 1 times with a remainder of 46.
The next digit of our result is 1. 
Result so far: 221.0
Subtracting 72 from 118 leaves us with 46.
Take the next digit (3) from the dividend and append it to 46, then repeat: 463 / 72

Step 6:
72 can be fit into 463 6 times, resulting in a remainder of 31.
Put 6 as the next digit of the answer. 
Result so far: 2216.0
Subtract 432 from 463 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
310 divided by 72 is 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 2216.4
Subtract 288 from 310 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
If we divide 220 by 72, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 2216.43
Deduct 216 from 220 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
72 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 2216.43
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
72 goes into 400 5 times with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 2216.4305
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
When dividing 400 by 72, we get 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 2216.43055
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 2216.43055, and the remainder is 4e-05.