We divide 144245 by 51
The aim is to understand the frequency of 51 in 144245.

Step 1:
1 divided by 51 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 51

Advancing to step 2:
If we divide 14 by 51, we get 0 and a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 51

Going ahead to step 3:
51 goes into 144 2 times with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 102 from 144 to get 42.
Include the next digit (2) from the dividend after 42, then repeat: 422 / 51

Going ahead to step 4:
51 can be fit into 422 8 times, resulting in a remainder of 14.
The next digit of our result is 8. 
Result so far: 28.0
If we take 408 away from 422, we end up with 14.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 51

Moving on to step 5:
144 divided by 51 is 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 282.0
Subtract 102 from 144 to get 42.
Include the next digit (5) from the dividend after 42, then repeat: 425 / 51

Step 6:
The number 51 fits into 425 8 times, leaving a remainder of 17.
The next digit of our result is 8. 
Result so far: 2828.0
Subtract 408 from 425 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
When dividing 170 by 51, we get 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 2828.3
If we take 153 away from 170, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 8:
When dividing 170 by 51, we get 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 2828.33
Subtracting 153 from 170 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Our division results in 2828.33 with a remaining 0.017.