63678 divided by 90 
We're looking to find how many times 90 goes into 63678.

Step 1:
90 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 90

Let's proceed to step 2:
If we divide 63 by 90, we get 0 and a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Fetch the next digit (6) from the dividend, attach it to 63 and continue: 636 / 90

Advancing to step 3:
If we divide 636 by 90, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 630 from 636 and we're left with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 90

Let's proceed to step 4:
90 goes into 67 0 times with a remainder of 67.
Write down 0 as next digit of the result. 
Result so far: 70.0
Deduct 0 from 67 and we're left with 67.
Take the next digit (8) from the dividend and append it to 67, then repeat: 678 / 90

Let's proceed to step 5:
If we divide 678 by 90, we get 7 and a remainder of 48.
Record the quotient 7 as the next digit in the result. 
Result so far: 707.0
If we subtract 630 from 678, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 6:
If we divide 480 by 90, we get 5 and a remainder of 30.
The next digit of our result is 5. 
Result so far: 707.5
If we subtract 450 from 480, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 7:
If we divide 300 by 90, we get 3 and a remainder of 30.
The next digit of our result is 3. 
Result so far: 707.53
If we subtract 270 from 300, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 707.533
If we subtract 270 from 300, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 707.533, with a leftover of 0.003.