We're dividing 488448 by 3 
The aim is to understand the frequency of 3 in 488448.

Step 1:
When dividing 4 by 3, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 3 from 4, we get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 3

On to step 2:
If we divide 18 by 3, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 18 away from 18, we end up with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 3

Moving on to step 3:
3 can be fit into 8 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 162.0
Subtracting 6 from 8 leaves us with 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 3

Moving on to step 4:
3 can be fit into 24 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 1628.0
If we take 24 away from 24, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 3

Advancing to step 5:
3 can be fit into 4 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 16281.0
The remainder is 1 after subtracting 3 from 4.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 3

Going ahead to step 6:
3 can be fit into 18 6 times, resulting in a remainder of 0.
The next digit of our result is 6. 
Result so far: 162816.0
Deduct 18 from 18 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 162816.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
3 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 162816.0
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.

The quotient of the division is 162816.0, and the remainder is 0.0.