We look at the division of 65720645 by 239 
The aim is to understand the frequency of 239 in 65720645.

Moving on to step 1:
6 divided by 239 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 239

Moving on to step 2:
65 divided by 239 is 0 with a remainder of 65.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Include the next digit (7) from the dividend after 65, then repeat: 657 / 239

Advancing to step 3:
The number 239 fits into 657 2 times, leaving a remainder of 179.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 478 from 657 leaves us with 179.
Take the next digit (2) from the dividend and append it to 179, then repeat: 1792 / 239

Going ahead to step 4:
If we divide 1792 by 239, we get 7 and a remainder of 119.
Put 7 as the next digit of the answer. 
Result so far: 27.0
The remainder is 119 after subtracting 1673 from 1792.
Bring next digit (0) of the dividend behind the 119 and repeat the process: 1190 / 239

On to step 5:
239 can be fit into 1190 4 times, resulting in a remainder of 234.
Put 4 as the next digit of the answer. 
Result so far: 274.0
Subtracting 956 from 1190 leaves us with 234.
Include the next digit (6) from the dividend after 234, then repeat: 2346 / 239

Going ahead to step 6:
2346 divided by 239 is 9 with a remainder of 195.
Write down 9 as next digit of the result. 
Result so far: 2749.0
The remainder is 195 after subtracting 2151 from 2346.
Bring next digit (4) of the dividend behind the 195 and repeat the process: 1954 / 239

Let's proceed to step 7:
1954 divided by 239 is 8 with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 27498.0
If we take 1912 away from 1954, we end up with 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 239

Let's proceed to step 8:
When dividing 425 by 239, we get 1 with a remainder of 186.
Put 1 as the next digit of the answer. 
Result so far: 274981.0
If we subtract 239 from 425, we get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Going ahead to step 9:
239 goes into 1860 7 times with a remainder of 187.
The number 7 becomes the next digit in our result. 
Result so far: 274981.7
The remainder is 187 after subtracting 1673 from 1860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Advancing to step 10:
239 can be fit into 1870 7 times, resulting in a remainder of 197.
The next digit of our result is 7. 
Result so far: 274981.77
If we take 1673 away from 1870, we end up with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

After the division, we end up with 274981.77 and a remainder of 0.197.