We're dividing 90253491 by 997 
Our goal is to divide 90253491 by 997.

Let's proceed to step 1:
The number 997 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 997

Moving on to step 2:
When dividing 90 by 997, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Include the next digit (2) from the dividend after 90, then repeat: 902 / 997

Moving on to step 3:
997 goes into 902 0 times with a remainder of 902.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 902, we end up with 902.
Append the next digit (5) from the dividend to 902 and continue with: 9025 / 997

On to step 4:
997 can be fit into 9025 9 times, resulting in a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 8973 from 9025 leaves us with 52.
Bring next digit (3) of the dividend behind the 52 and repeat the process: 523 / 997

Let's proceed to step 5:
If we divide 523 by 997, we get 0 and a remainder of 523.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
The remainder is 523 after subtracting 0 from 523.
Grab the next digit (4) from the dividend, add it to 523, then carry on: 5234 / 997

On to step 6:
The number 997 fits into 5234 5 times, leaving a remainder of 249.
The next digit of our result is 5. 
Result so far: 905.0
If we subtract 4985 from 5234, we get 249.
Take the next digit (9) from the dividend and append it to 249, then repeat: 2499 / 997

Going ahead to step 7:
2499 divided by 997 is 2 with a remainder of 505.
Use 2 as the next digit of our solution. 
Result so far: 9052.0
If we take 1994 away from 2499, we end up with 505.
Append the next digit (1) from the dividend to 505 and continue with: 5051 / 997

On to step 8:
997 can be fit into 5051 5 times, resulting in a remainder of 66.
The number 5 becomes the next digit in our result. 
Result so far: 90525.0
The remainder is 66 after subtracting 4985 from 5051.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
The number 997 fits into 660 0 times, leaving a remainder of 660.
The number 0 becomes the next digit in our result. 
Result so far: 90525.0
If we subtract 0 from 660, we get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Step 10:
997 can be fit into 6600 6 times, resulting in a remainder of 618.
Record the quotient 6 as the next digit in the result. 
Result so far: 90525.06
The remainder is 618 after subtracting 5982 from 6600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Step 11:
997 goes into 6180 6 times with a remainder of 198.
Put 6 as the next digit of the answer. 
Result so far: 90525.066
If we take 5982 away from 6180, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

After the division, we end up with 90525.066 and a remainder of 0.0198.