551535 divided by 72 
The aim is to understand the frequency of 72 in 551535.

Let's proceed to step 1:
72 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 72

On to step 2:
72 goes into 55 0 times with a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Append the next digit (1) from the dividend to 55 and continue with: 551 / 72

Advancing to step 3:
72 goes into 551 7 times with a remainder of 47.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 47 after subtracting 504 from 551.
Include the next digit (5) from the dividend after 47, then repeat: 475 / 72

On to step 4:
If we divide 475 by 72, we get 6 and a remainder of 43.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we take 432 away from 475, we end up with 43.
Include the next digit (3) from the dividend after 43, then repeat: 433 / 72

Advancing to step 5:
If we divide 433 by 72, we get 6 and a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 766.0
If we take 432 away from 433, we end up with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 72

Let's proceed to step 6:
72 can be fit into 15 0 times, resulting in a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 7660.0
If we subtract 0 from 15, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
72 can be fit into 150 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 7660.2
Subtract 144 from 150 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
If we divide 60 by 72, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 7660.2
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
72 goes into 600 8 times with a remainder of 24.
The next digit of our result is 8. 
Result so far: 7660.208
Subtracting 576 from 600 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
240 divided by 72 is 3 with a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 7660.2083
Subtracting 216 from 240 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
The number 72 fits into 240 3 times, leaving a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 7660.20833
If we subtract 216 from 240, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 7660.20833, with a leftover of 2.4e-05.