We look at the division of 30870239 by 261 
The aim is to understand the frequency of 261 in 30870239.

Let's proceed to step 1:
3 divided by 261 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 261

Moving on to step 2:
When dividing 30 by 261, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Bring next digit (8) of the dividend behind the 30 and repeat the process: 308 / 261

Moving on to step 3:
261 can be fit into 308 1 times, resulting in a remainder of 47.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 261 from 308 and we're left with 47.
Include the next digit (7) from the dividend after 47, then repeat: 477 / 261

On to step 4:
If we divide 477 by 261, we get 1 and a remainder of 216.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 261 away from 477, we end up with 216.
Take the next digit (0) from the dividend and append it to 216, then repeat: 2160 / 261

Advancing to step 5:
When dividing 2160 by 261, we get 8 with a remainder of 72.
The next digit of our result is 8. 
Result so far: 118.0
If we take 2088 away from 2160, we end up with 72.
Take the next digit (2) from the dividend and append it to 72, then repeat: 722 / 261

Going ahead to step 6:
When dividing 722 by 261, we get 2 with a remainder of 200.
Record the quotient 2 as the next digit in the result. 
Result so far: 1182.0
The remainder is 200 after subtracting 522 from 722.
Grab the next digit (3) from the dividend, add it to 200, then carry on: 2003 / 261

Step 7:
261 can be fit into 2003 7 times, resulting in a remainder of 176.
The number 7 becomes the next digit in our result. 
Result so far: 11827.0
Deduct 1827 from 2003 and we're left with 176.
Grab the next digit (9) from the dividend, add it to 176, then carry on: 1769 / 261

Let's proceed to step 8:
When dividing 1769 by 261, we get 6 with a remainder of 203.
Record the quotient 6 as the next digit in the result. 
Result so far: 118276.0
If we take 1566 away from 1769, we end up with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Going ahead to step 9:
When dividing 2030 by 261, we get 7 with a remainder of 203.
Put 7 as the next digit of the answer. 
Result so far: 118276.7
Subtracting 1827 from 2030 leaves us with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Step 10:
261 can be fit into 2030 7 times, resulting in a remainder of 203.
Record the quotient 7 as the next digit in the result. 
Result so far: 118276.77
Subtract 1827 from 2030 to get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Our division results in 118276.77 with a remaining 0.203.