13953259 ÷ 665 
The aim is to understand the frequency of 665 in 13953259.

Going ahead to step 1:
If we divide 1 by 665, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 665

Going ahead to step 2:
665 goes into 13 0 times with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 665

Going ahead to step 3:
If we divide 139 by 665, we get 0 and a remainder of 139.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 139 and we're left with 139.
Grab the next digit (5) from the dividend, add it to 139, then carry on: 1395 / 665

Step 4:
665 can be fit into 1395 2 times, resulting in a remainder of 65.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 65 after subtracting 1330 from 1395.
Take the next digit (3) from the dividend and append it to 65, then repeat: 653 / 665

Going ahead to step 5:
The number 665 fits into 653 0 times, leaving a remainder of 653.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
The remainder is 653 after subtracting 0 from 653.
Include the next digit (2) from the dividend after 653, then repeat: 6532 / 665

Advancing to step 6:
665 can be fit into 6532 9 times, resulting in a remainder of 547.
Record the quotient 9 as the next digit in the result. 
Result so far: 209.0
Subtracting 5985 from 6532 leaves us with 547.
Take the next digit (5) from the dividend and append it to 547, then repeat: 5475 / 665

Going ahead to step 7:
665 can be fit into 5475 8 times, resulting in a remainder of 155.
Write down 8 as next digit of the result. 
Result so far: 2098.0
If we subtract 5320 from 5475, we get 155.
Include the next digit (9) from the dividend after 155, then repeat: 1559 / 665

Step 8:
665 can be fit into 1559 2 times, resulting in a remainder of 229.
Use 2 as the next digit of our solution. 
Result so far: 20982.0
Subtracting 1330 from 1559 leaves us with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 9:
665 can be fit into 2290 3 times, resulting in a remainder of 295.
The next digit of our result is 3. 
Result so far: 20982.3
Subtracting 1995 from 2290 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 10:
2950 divided by 665 is 4 with a remainder of 290.
Record the quotient 4 as the next digit in the result. 
Result so far: 20982.34
If we take 2660 away from 2950, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Going ahead to step 11:
665 goes into 2900 4 times with a remainder of 240.
The next digit of our result is 4. 
Result so far: 20982.344
If we subtract 2660 from 2900, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

In conclusion, the division gives 20982.344 with a balance of 0.024.