Let's divide 448242 by 90
We're looking to find how many times 90 goes into 448242.

Step 1:
90 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 90

On to step 2:
The number 90 fits into 44 0 times, leaving a remainder of 44.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 44 after subtracting 0 from 44.
Take the next digit (8) from the dividend and append it to 44, then repeat: 448 / 90

Going ahead to step 3:
If we divide 448 by 90, we get 4 and a remainder of 88.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 360 from 448 to get 88.
Append the next digit (2) from the dividend to 88 and continue with: 882 / 90

Let's proceed to step 4:
90 can be fit into 882 9 times, resulting in a remainder of 72.
Use 9 as the next digit of our solution. 
Result so far: 49.0
Subtract 810 from 882 to get 72.
Take the next digit (4) from the dividend and append it to 72, then repeat: 724 / 90

On to step 5:
90 can be fit into 724 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 498.0
Subtract 720 from 724 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 90

Let's proceed to step 6:
90 can be fit into 42 0 times, resulting in a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 4980.0
Deduct 0 from 42 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 7:
90 goes into 420 4 times with a remainder of 60.
The next digit of our result is 4. 
Result so far: 4980.4
Subtract 360 from 420 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
The number 90 fits into 600 6 times, leaving a remainder of 60.
The next digit of our result is 6. 
Result so far: 4980.46
Deduct 540 from 600 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 9:
The number 90 fits into 600 6 times, leaving a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 4980.466
Deduct 540 from 600 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 4980.466 and a remainder of 0.006.