We divide 491589 by 51
We want to divide 491589 by 51.

On to step 1:
The number 51 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 51

Going ahead to step 2:
If we divide 49 by 51, we get 0 and a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 49 and we're left with 49.
Append the next digit (1) from the dividend to 49 and continue with: 491 / 51

Let's proceed to step 3:
51 goes into 491 9 times with a remainder of 32.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 32 after subtracting 459 from 491.
Append the next digit (5) from the dividend to 32 and continue with: 325 / 51

Going ahead to step 4:
325 divided by 51 is 6 with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 96.0
If we take 306 away from 325, we end up with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 51

Let's proceed to step 5:
198 divided by 51 is 3 with a remainder of 45.
Put 3 as the next digit of the answer. 
Result so far: 963.0
Subtracting 153 from 198 leaves us with 45.
Take the next digit (9) from the dividend and append it to 45, then repeat: 459 / 51

On to step 6:
If we divide 459 by 51, we get 9 and a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 9639.0
The remainder is 0 after subtracting 459 from 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
0 divided by 51 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 9639.0
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.

Let's proceed to step 8:
If we divide 0 by 51, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 9639.0
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.

The final outcome is 9639.0, with a leftover of 0.0.