We're dividing 591263 by 72 
The aim is to understand the frequency of 72 in 591263.

Advancing to step 1:
5 divided by 72 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 72

Advancing to step 2:
The number 72 fits into 59 0 times, leaving a remainder of 59.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 59 leaves us with 59.
Fetch the next digit (1) from the dividend, attach it to 59 and continue: 591 / 72

Moving on to step 3:
72 goes into 591 8 times with a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 576 away from 591, we end up with 15.
Append the next digit (2) from the dividend to 15 and continue with: 152 / 72

Moving on to step 4:
72 goes into 152 2 times with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 82.0
The remainder is 8 after subtracting 144 from 152.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 72

Moving on to step 5:
If we divide 86 by 72, we get 1 and a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 821.0
If we take 72 away from 86, we end up with 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 72

Let's proceed to step 6:
143 divided by 72 is 1 with a remainder of 71.
Write down 1 as next digit of the result. 
Result so far: 8211.0
Subtracting 72 from 143 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 7:
The number 72 fits into 710 9 times, leaving a remainder of 62.
Record the quotient 9 as the next digit in the result. 
Result so far: 8211.9
Subtract 648 from 710 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 8:
72 goes into 620 8 times with a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 8211.98
Subtracting 576 from 620 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
If we divide 440 by 72, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 8211.986
The remainder is 8 after subtracting 432 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
72 can be fit into 80 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 8211.9861
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
If we divide 80 by 72, we get 1 and a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 8211.98611
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 8211.98611 and a remainder of 8e-06.