We divide 515671 by 72
The aim is to understand the frequency of 72 in 515671.

Let's proceed to step 1:
When dividing 5 by 72, we get 0 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.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 72

Advancing to step 2:
If we divide 51 by 72, we get 0 and a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Fetch the next digit (5) from the dividend, attach it to 51 and continue: 515 / 72

Moving on to step 3:
If we divide 515 by 72, we get 7 and a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 504 from 515 to get 11.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 72

Advancing to step 4:
If we divide 116 by 72, we get 1 and a remainder of 44.
Write down 1 as next digit of the result. 
Result so far: 71.0
Subtract 72 from 116 to get 44.
Fetch the next digit (7) from the dividend, attach it to 44 and continue: 447 / 72

Let's proceed to step 5:
447 divided by 72 is 6 with a remainder of 15.
The next digit of our result is 6. 
Result so far: 716.0
Subtract 432 from 447 to get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 72

Step 6:
If we divide 151 by 72, we get 2 and a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 7162.0
If we take 144 away from 151, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
70 divided by 72 is 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 7162.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
When dividing 700 by 72, we get 9 with a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 7162.09
Subtracting 648 from 700 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
72 can be fit into 520 7 times, resulting in a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 7162.097
Deduct 504 from 520 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
When dividing 160 by 72, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 7162.0972
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
160 divided by 72 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 7162.09722
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 7162.09722, with a leftover of 1.6e-05.