663736 ÷ 90 
We want to figure out the number of times 663736 can be divided by 90.

Going ahead to step 1:
The number 90 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 90

Going ahead to step 2:
When dividing 66 by 90, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 90

Step 3:
663 divided by 90 is 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 630 from 663 to get 33.
Fetch the next digit (7) from the dividend, attach it to 33 and continue: 337 / 90

Advancing to step 4:
If we divide 337 by 90, we get 3 and a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
The remainder is 67 after subtracting 270 from 337.
Append the next digit (3) from the dividend to 67 and continue with: 673 / 90

Step 5:
If we divide 673 by 90, we get 7 and a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 737.0
The remainder is 43 after subtracting 630 from 673.
Grab the next digit (6) from the dividend, add it to 43, then carry on: 436 / 90

Going ahead to step 6:
90 can be fit into 436 4 times, resulting in a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 7374.0
The remainder is 76 after subtracting 360 from 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 7:
The number 90 fits into 760 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 7374.8
Subtracting 720 from 760 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
90 goes into 400 4 times with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 7374.84
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
90 can be fit into 400 4 times, resulting in a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 7374.844
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 7374.844 with a balance of 0.004.