We divide 13443929 by 959
The aim is to understand the frequency of 959 in 13443929.

Step 1:
When dividing 1 by 959, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 959

On to step 2:
959 can be fit into 13 0 times, resulting in a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 959

On to step 3:
If we divide 134 by 959, we get 0 and a remainder of 134.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 134 leaves us with 134.
Append the next digit (4) from the dividend to 134 and continue with: 1344 / 959

Advancing to step 4:
If we divide 1344 by 959, we get 1 and a remainder of 385.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 959 from 1344 and we're left with 385.
Bring next digit (3) of the dividend behind the 385 and repeat the process: 3853 / 959

Step 5:
The number 959 fits into 3853 4 times, leaving a remainder of 17.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 3836 from 3853 to get 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 959

On to step 6:
When dividing 179 by 959, we get 0 with a remainder of 179.
The number 0 becomes the next digit in our result. 
Result so far: 140.0
The remainder is 179 after subtracting 0 from 179.
Take the next digit (2) from the dividend and append it to 179, then repeat: 1792 / 959

Let's proceed to step 7:
959 can be fit into 1792 1 times, resulting in a remainder of 833.
Put 1 as the next digit of the answer. 
Result so far: 1401.0
Subtracting 959 from 1792 leaves us with 833.
Include the next digit (9) from the dividend after 833, then repeat: 8339 / 959

Going ahead to step 8:
If we divide 8339 by 959, we get 8 and a remainder of 667.
Use 8 as the next digit of our solution. 
Result so far: 14018.0
If we take 7672 away from 8339, we end up with 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6670, and continue the process.

Let's proceed to step 9:
959 can be fit into 6670 6 times, resulting in a remainder of 916.
Record the quotient 6 as the next digit in the result. 
Result so far: 14018.6
If we take 5754 away from 6670, we end up with 916.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9160, and continue the process.

Moving on to step 10:
959 goes into 9160 9 times with a remainder of 529.
The number 9 becomes the next digit in our result. 
Result so far: 14018.69
If we take 8631 away from 9160, we end up with 529.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5290, and continue the process.

Step 11:
959 goes into 5290 5 times with a remainder of 495.
Use 5 as the next digit of our solution. 
Result so far: 14018.695
If we subtract 4795 from 5290, we get 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Advancing to step 12:
4950 divided by 959 is 5 with a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 14018.6955
Subtract 4795 from 4950 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

After the division, we end up with 14018.6955 and a remainder of 0.00155.