Let's divide 308663 by 90
We want to divide 308663 by 90.

Advancing to step 1:
If we divide 3 by 90, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 90

Moving on to step 2:
When dividing 30 by 90, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 90

Let's proceed to step 3:
When dividing 308 by 90, we get 3 with a remainder of 38.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 38 after subtracting 270 from 308.
Append the next digit (6) from the dividend to 38 and continue with: 386 / 90

Let's proceed to step 4:
386 divided by 90 is 4 with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Deduct 360 from 386 and we're left with 26.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 90

Going ahead to step 5:
When dividing 266 by 90, we get 2 with a remainder of 86.
Put 2 as the next digit of the answer. 
Result so far: 342.0
If we take 180 away from 266, we end up with 86.
Grab the next digit (3) from the dividend, add it to 86, then carry on: 863 / 90

Step 6:
When dividing 863 by 90, we get 9 with a remainder of 53.
The number 9 becomes the next digit in our result. 
Result so far: 3429.0
If we take 810 away from 863, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 7:
90 can be fit into 530 5 times, resulting in a remainder of 80.
The next digit of our result is 5. 
Result so far: 3429.5
Subtract 450 from 530 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 8:
90 goes into 800 8 times with a remainder of 80.
The next digit of our result is 8. 
Result so far: 3429.58
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 9:
90 goes into 800 8 times with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 3429.588
Deduct 720 from 800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 3429.588 with a remaining 0.008.