573870 ÷ 72 
The aim is to understand the frequency of 72 in 573870.

Let's proceed to step 1:
When dividing 5 by 72, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 72

On to step 2:
57 divided by 72 is 0 with a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Take the next digit (3) from the dividend and append it to 57, then repeat: 573 / 72

Going ahead to step 3:
72 goes into 573 7 times with a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 504 from 573 to get 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 72

Advancing to step 4:
The number 72 fits into 698 9 times, leaving a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
Subtract 648 from 698 to get 50.
Include the next digit (7) from the dividend after 50, then repeat: 507 / 72

Going ahead to step 5:
72 can be fit into 507 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 797.0
Subtracting 504 from 507 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 72

Moving on to step 6:
When dividing 30 by 72, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 7970.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 7:
The number 72 fits into 300 4 times, leaving a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 7970.4
Deduct 288 from 300 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
When dividing 120 by 72, we get 1 with a remainder of 48.
Record the quotient 1 as the next digit in the result. 
Result so far: 7970.41
Deduct 72 from 120 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 9:
If we divide 480 by 72, we get 6 and a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 7970.416
If we take 432 away from 480, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
480 divided by 72 is 6 with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 7970.4166
The remainder is 48 after subtracting 432 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 7970.4166 with a balance of 0.00048.