We look at the division of 288049 by 4 
The aim is to understand the frequency of 4 in 288049.

Step 1:
4 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 4

Moving on to step 2:
If we divide 28 by 4, we get 7 and a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 0 after subtracting 28 from 28.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 4

Advancing to step 3:
4 can be fit into 8 2 times, resulting in a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
If we subtract 8 from 8, we get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 4

On to step 4:
0 divided by 4 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 720.0
Subtract 0 from 0 to get 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 4

Moving on to step 5:
4 divided by 4 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 7201.0
The remainder is 0 after subtracting 4 from 4.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 4

On to step 6:
9 divided by 4 is 2 with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 72012.0
If we subtract 8 from 9, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
If we divide 10 by 4, we get 2 and a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 72012.2
If we take 8 away from 10, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 72012.25
Subtract 20 from 20 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 72012.25
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 72012.25
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 72012.25 with a remaining 0.0.