521958 divided by 90 
Our goal is to divide 521958 by 90.

Moving on to step 1:
5 divided by 90 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 90

Going ahead to step 2:
When dividing 52 by 90, we get 0 with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Bring next digit (1) of the dividend behind the 52 and repeat the process: 521 / 90

Going ahead to step 3:
90 can be fit into 521 5 times, resulting in a remainder of 71.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 71 after subtracting 450 from 521.
Grab the next digit (9) from the dividend, add it to 71, then carry on: 719 / 90

Moving on to step 4:
If we divide 719 by 90, we get 7 and a remainder of 89.
Put 7 as the next digit of the answer. 
Result so far: 57.0
The remainder is 89 after subtracting 630 from 719.
Include the next digit (5) from the dividend after 89, then repeat: 895 / 90

Going ahead to step 5:
895 divided by 90 is 9 with a remainder of 85.
Record the quotient 9 as the next digit in the result. 
Result so far: 579.0
Subtracting 810 from 895 leaves us with 85.
Fetch the next digit (8) from the dividend, attach it to 85 and continue: 858 / 90

Going ahead to step 6:
90 can be fit into 858 9 times, resulting in a remainder of 48.
The number 9 becomes the next digit in our result. 
Result so far: 5799.0
Deduct 810 from 858 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 7:
90 can be fit into 480 5 times, resulting in a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 5799.5
If we subtract 450 from 480, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
If we divide 300 by 90, we get 3 and a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 5799.53
If we subtract 270 from 300, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
90 goes into 300 3 times with a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 5799.533
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 5799.533 with a balance of 0.003.