We're dividing 42578542 by 72 
The aim is to understand the frequency of 72 in 42578542.

Let's proceed to step 1:
72 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 72

Moving on to step 2:
72 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 72

Let's proceed to step 3:
If we divide 425 by 72, we get 5 and a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 360 from 425 leaves us with 65.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 72

Advancing to step 4:
72 can be fit into 657 9 times, resulting in a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 59.0
Subtracting 648 from 657 leaves us with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 72

Moving on to step 5:
72 can be fit into 98 1 times, resulting in a remainder of 26.
Use 1 as the next digit of our solution. 
Result so far: 591.0
If we subtract 72 from 98, we get 26.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 72

Moving on to step 6:
When dividing 265 by 72, we get 3 with a remainder of 49.
The next digit of our result is 3. 
Result so far: 5913.0
Deduct 216 from 265 and we're left with 49.
Fetch the next digit (4) from the dividend, attach it to 49 and continue: 494 / 72

On to step 7:
494 divided by 72 is 6 with a remainder of 62.
Record the quotient 6 as the next digit in the result. 
Result so far: 59136.0
If we take 432 away from 494, we end up with 62.
Grab the next digit (2) from the dividend, add it to 62, then carry on: 622 / 72

On to step 8:
If we divide 622 by 72, we get 8 and a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 591368.0
The remainder is 46 after subtracting 576 from 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 9:
72 goes into 460 6 times with a remainder of 28.
Put 6 as the next digit of the answer. 
Result so far: 591368.6
Deduct 432 from 460 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
When dividing 280 by 72, we get 3 with a remainder of 64.
Put 3 as the next digit of the answer. 
Result so far: 591368.63
Subtracting 216 from 280 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 11:
If we divide 640 by 72, we get 8 and a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 591368.638
If we take 576 away from 640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 12:
640 divided by 72 is 8 with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 591368.6388
If we take 576 away from 640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

In conclusion, the division gives 591368.6388 with a balance of 0.00064.