We divide 609685 by 72
The aim is to understand the frequency of 72 in 609685.

Advancing to step 1:
72 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 72

Advancing to step 2:
60 divided by 72 is 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Take the next digit (9) from the dividend and append it to 60, then repeat: 609 / 72

Going ahead to step 3:
72 goes into 609 8 times with a remainder of 33.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 33 after subtracting 576 from 609.
Grab the next digit (6) from the dividend, add it to 33, then carry on: 336 / 72

On to step 4:
336 divided by 72 is 4 with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 84.0
The remainder is 48 after subtracting 288 from 336.
Take the next digit (8) from the dividend and append it to 48, then repeat: 488 / 72

Step 5:
72 can be fit into 488 6 times, resulting in a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 846.0
The remainder is 56 after subtracting 432 from 488.
Take the next digit (5) from the dividend and append it to 56, then repeat: 565 / 72

Moving on to step 6:
When dividing 565 by 72, we get 7 with a remainder of 61.
The number 7 becomes the next digit in our result. 
Result so far: 8467.0
If we take 504 away from 565, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 7:
610 divided by 72 is 8 with a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 8467.8
Subtract 576 from 610 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 8:
When dividing 340 by 72, we get 4 with a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 8467.84
If we subtract 288 from 340, we get 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.
Write down 7 as next digit of the result. 
Result so far: 8467.847
If we subtract 504 from 520, we 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.

On to step 10:
72 can be fit into 160 2 times, resulting in a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 8467.8472
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
72 can be fit into 160 2 times, resulting in a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 8467.84722
Deduct 144 from 160 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.

After the division, we end up with 8467.84722 and a remainder of 1.6e-05.