We divide 38550458 by 90
We want to divide 38550458 by 90.

Step 1:
90 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 90

Moving on to step 2:
90 can be fit into 38 0 times, resulting in a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Bring next digit (5) of the dividend behind the 38 and repeat the process: 385 / 90

Moving on to step 3:
90 goes into 385 4 times with a remainder of 25.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 360 from 385 and we're left with 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 90

Advancing to step 4:
90 goes into 255 2 times with a remainder of 75.
The next digit of our result is 2. 
Result so far: 42.0
The remainder is 75 after subtracting 180 from 255.
Include the next digit (0) from the dividend after 75, then repeat: 750 / 90

Step 5:
90 goes into 750 8 times with a remainder of 30.
Use 8 as the next digit of our solution. 
Result so far: 428.0
If we take 720 away from 750, we end up with 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 90

Step 6:
If we divide 304 by 90, we get 3 and a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 4283.0
If we take 270 away from 304, we end up with 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 90

Going ahead to step 7:
The number 90 fits into 345 3 times, leaving a remainder of 75.
Put 3 as the next digit of the answer. 
Result so far: 42833.0
Subtracting 270 from 345 leaves us with 75.
Include the next digit (8) from the dividend after 75, then repeat: 758 / 90

Step 8:
90 goes into 758 8 times with a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 428338.0
If we take 720 away from 758, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 9:
The number 90 fits into 380 4 times, leaving a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 428338.4
Subtracting 360 from 380 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
If we divide 200 by 90, we get 2 and a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 428338.42
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
When dividing 200 by 90, we get 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 428338.422
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 428338.422, and the remainder is 0.002.