We're dividing 49980088 by 90 
We want to figure out the number of times 49980088 can be divided by 90.

Advancing to step 1:
If we divide 4 by 90, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 90

On to step 2:
The number 90 fits into 49 0 times, leaving a remainder of 49.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Fetch the next digit (9) from the dividend, attach it to 49 and continue: 499 / 90

Advancing to step 3:
If we divide 499 by 90, we get 5 and a remainder of 49.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 450 from 499, we get 49.
Grab the next digit (8) from the dividend, add it to 49, then carry on: 498 / 90

Moving on to step 4:
The number 90 fits into 498 5 times, leaving a remainder of 48.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we take 450 away from 498, we end up with 48.
Take the next digit (0) from the dividend and append it to 48, then repeat: 480 / 90

On to step 5:
90 can be fit into 480 5 times, resulting in a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 555.0
Deduct 450 from 480 and we're left with 30.
Take the next digit (0) from the dividend and append it to 30, then repeat: 300 / 90

Going ahead to step 6:
The number 90 fits into 300 3 times, leaving a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 5553.0
If we subtract 270 from 300, we get 30.
Fetch the next digit (8) from the dividend, attach it to 30 and continue: 308 / 90

Let's proceed to step 7:
90 can be fit into 308 3 times, resulting in a remainder of 38.
Use 3 as the next digit of our solution. 
Result so far: 55533.0
If we subtract 270 from 308, we get 38.
Grab the next digit (8) from the dividend, add it to 38, then carry on: 388 / 90

Going ahead to step 8:
The number 90 fits into 388 4 times, leaving a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 555334.0
If we subtract 360 from 388, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
If we divide 280 by 90, we get 3 and a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 555334.3
The remainder is 10 after subtracting 270 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 90 fits into 100 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 555334.31
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
The number 90 fits into 100 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 555334.311
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 555334.311 with a balance of 0.001.