We're dividing 463803 by 90 
We want to divide 463803 by 90.

Advancing to step 1:
4 divided by 90 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 90

On to step 2:
The number 90 fits into 46 0 times, leaving a remainder of 46.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 46 after subtracting 0 from 46.
Append the next digit (3) from the dividend to 46 and continue with: 463 / 90

Step 3:
90 can be fit into 463 5 times, resulting in a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 450 from 463, we get 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 90

Step 4:
When dividing 138 by 90, we get 1 with a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
If we subtract 90 from 138, we get 48.
Take the next digit (0) from the dividend and append it to 48, then repeat: 480 / 90

Going ahead to step 5:
90 goes into 480 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 515.0
If we subtract 450 from 480, we get 30.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 90

Moving on to step 6:
303 divided by 90 is 3 with a remainder of 33.
The next digit of our result is 3. 
Result so far: 5153.0
Subtracting 270 from 303 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 7:
The number 90 fits into 330 3 times, leaving a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 5153.3
If we subtract 270 from 330, we 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.

Step 8:
90 can be fit into 600 6 times, resulting in a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 5153.36
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:
90 can be fit into 600 6 times, resulting in a remainder of 60.
The next digit of our result is 6. 
Result so far: 5153.366
Subtracting 540 from 600 leaves us 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 5153.366 and a remainder of 0.006.