We divide 14099943 by 261
The aim is to understand the frequency of 261 in 14099943.

Advancing to step 1:
If we divide 1 by 261, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 261

Step 2:
261 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Grab the next digit (0) from the dividend, add it to 14, then carry on: 140 / 261

Moving on to step 3:
The number 261 fits into 140 0 times, leaving a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 140 to get 140.
Grab the next digit (9) from the dividend, add it to 140, then carry on: 1409 / 261

Advancing to step 4:
1409 divided by 261 is 5 with a remainder of 104.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 1305 from 1409, we get 104.
Take the next digit (9) from the dividend and append it to 104, then repeat: 1049 / 261

Going ahead to step 5:
The number 261 fits into 1049 4 times, leaving a remainder of 5.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
If we take 1044 away from 1049, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 261

Moving on to step 6:
When dividing 59 by 261, we get 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 540.0
Subtracting 0 from 59 leaves us with 59.
Grab the next digit (4) from the dividend, add it to 59, then carry on: 594 / 261

Moving on to step 7:
261 can be fit into 594 2 times, resulting in a remainder of 72.
Put 2 as the next digit of the answer. 
Result so far: 5402.0
Deduct 522 from 594 and we're left with 72.
Grab the next digit (3) from the dividend, add it to 72, then carry on: 723 / 261

Moving on to step 8:
The number 261 fits into 723 2 times, leaving a remainder of 201.
The next digit of our result is 2. 
Result so far: 54022.0
If we take 522 away from 723, we end up with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Moving on to step 9:
2010 divided by 261 is 7 with a remainder of 183.
The number 7 becomes the next digit in our result. 
Result so far: 54022.7
Subtract 1827 from 2010 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

On to step 10:
The number 261 fits into 1830 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 54022.77
Subtract 1827 from 1830 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 54022.77, and the remainder is 0.003.