We look at the division of 457344 by 90 
We want to figure out the number of times 457344 can be divided by 90.

On to step 1:
When dividing 4 by 90, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 90

Moving on to step 2:
90 goes into 45 0 times with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Bring next digit (7) of the dividend behind the 45 and repeat the process: 457 / 90

Step 3:
90 goes into 457 5 times with a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 7 after subtracting 450 from 457.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 90

Let's proceed to step 4:
If we divide 73 by 90, we get 0 and a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 50.0
The remainder is 73 after subtracting 0 from 73.
Take the next digit (4) from the dividend and append it to 73, then repeat: 734 / 90

Advancing to step 5:
90 goes into 734 8 times with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 508.0
If we take 720 away from 734, we end up with 14.
Grab the next digit (4) from the dividend, add it to 14, then carry on: 144 / 90

On to step 6:
The number 90 fits into 144 1 times, leaving a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 5081.0
Subtracting 90 from 144 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
If we divide 540 by 90, we get 6 and a remainder of 0.
The next digit of our result is 6. 
Result so far: 5081.6
Deduct 540 from 540 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 5081.6
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
90 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 5081.6
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 5081.6 with a remaining 0.0.