Let's divide 16443192 by 259
The aim is to understand the frequency of 259 in 16443192.

On to step 1:
1 divided by 259 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 259

Let's proceed to step 2:
16 divided by 259 is 0 with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 259

On to step 3:
The number 259 fits into 164 0 times, leaving a remainder of 164.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 164, we end up with 164.
Fetch the next digit (4) from the dividend, attach it to 164 and continue: 1644 / 259

Advancing to step 4:
259 goes into 1644 6 times with a remainder of 90.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 90 after subtracting 1554 from 1644.
Include the next digit (3) from the dividend after 90, then repeat: 903 / 259

Going ahead to step 5:
When dividing 903 by 259, we get 3 with a remainder of 126.
Write down 3 as next digit of the result. 
Result so far: 63.0
Deduct 777 from 903 and we're left with 126.
Append the next digit (1) from the dividend to 126 and continue with: 1261 / 259

Going ahead to step 6:
When dividing 1261 by 259, we get 4 with a remainder of 225.
Put 4 as the next digit of the answer. 
Result so far: 634.0
Deduct 1036 from 1261 and we're left with 225.
Bring next digit (9) of the dividend behind the 225 and repeat the process: 2259 / 259

Step 7:
The number 259 fits into 2259 8 times, leaving a remainder of 187.
Write down 8 as next digit of the result. 
Result so far: 6348.0
Subtract 2072 from 2259 to get 187.
Fetch the next digit (2) from the dividend, attach it to 187 and continue: 1872 / 259

Step 8:
259 can be fit into 1872 7 times, resulting in a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 63487.0
The remainder is 59 after subtracting 1813 from 1872.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
590 divided by 259 is 2 with a remainder of 72.
Put 2 as the next digit of the answer. 
Result so far: 63487.2
Subtract 518 from 590 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 10:
If we divide 720 by 259, we get 2 and a remainder of 202.
Use 2 as the next digit of our solution. 
Result so far: 63487.22
If we take 518 away from 720, we end up with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

After the division, we end up with 63487.22 and a remainder of 0.202.