We look at the division of 491958 by 90 
We want to divide 491958 by 90.

Step 1:
When dividing 4 by 90, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 90

Step 2:
49 divided by 90 is 0 with a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Bring next digit (1) of the dividend behind the 49 and repeat the process: 491 / 90

Step 3:
90 goes into 491 5 times with a remainder of 41.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 450 from 491 leaves us with 41.
Bring next digit (9) of the dividend behind the 41 and repeat the process: 419 / 90

Advancing to step 4:
When dividing 419 by 90, we get 4 with a remainder of 59.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtracting 360 from 419 leaves us with 59.
Include the next digit (5) from the dividend after 59, then repeat: 595 / 90

Moving on to step 5:
If we divide 595 by 90, we get 6 and a remainder of 55.
The number 6 becomes the next digit in our result. 
Result so far: 546.0
Deduct 540 from 595 and we're left with 55.
Take the next digit (8) from the dividend and append it to 55, then repeat: 558 / 90

On to step 6:
90 can be fit into 558 6 times, resulting in a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 5466.0
If we subtract 540 from 558, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 7:
180 divided by 90 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 5466.2
If we subtract 180 from 180, 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.

Let's proceed to step 8:
When dividing 0 by 90, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5466.2
Deduct 0 from 0 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.

Advancing to step 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5466.2
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.

In conclusion, the division gives 5466.2 with a balance of 0.0.