596821 divided by 90 
We want to figure out the number of times 596821 can be divided by 90.

Let's proceed to step 1:
When dividing 5 by 90, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 90

Advancing to step 2:
90 goes into 59 0 times with a remainder of 59.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 59 after subtracting 0 from 59.
Take the next digit (6) from the dividend and append it to 59, then repeat: 596 / 90

Let's proceed to step 3:
90 goes into 596 6 times with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 540 from 596, we get 56.
Append the next digit (8) from the dividend to 56 and continue with: 568 / 90

Step 4:
When dividing 568 by 90, we get 6 with a remainder of 28.
The next digit of our result is 6. 
Result so far: 66.0
Subtracting 540 from 568 leaves us with 28.
Append the next digit (2) from the dividend to 28 and continue with: 282 / 90

Step 5:
If we divide 282 by 90, we get 3 and a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 663.0
Subtract 270 from 282 to get 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 90

Let's proceed to step 6:
The number 90 fits into 121 1 times, leaving a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 6631.0
If we subtract 90 from 121, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
When dividing 310 by 90, we get 3 with a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 6631.3
If we subtract 270 from 310, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 6631.34
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
90 can be fit into 400 4 times, resulting in a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 6631.344
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 6631.344 with a remainder of 0.004.