490389 ÷ 87 
Our goal is to divide 490389 by 87.

Going ahead to step 1:
When dividing 4 by 87, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 87

Step 2:
87 goes into 49 0 times with a remainder of 49.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Include the next digit (0) from the dividend after 49, then repeat: 490 / 87

Going ahead to step 3:
87 goes into 490 5 times with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 435 away from 490, we end up with 55.
Grab the next digit (3) from the dividend, add it to 55, then carry on: 553 / 87

Let's proceed to step 4:
87 goes into 553 6 times with a remainder of 31.
The next digit of our result is 6. 
Result so far: 56.0
If we take 522 away from 553, we end up with 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 87

Let's proceed to step 5:
The number 87 fits into 318 3 times, leaving a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 563.0
Deduct 261 from 318 and we're left with 57.
Bring next digit (9) of the dividend behind the 57 and repeat the process: 579 / 87

Advancing to step 6:
579 divided by 87 is 6 with a remainder of 57.
The number 6 becomes the next digit in our result. 
Result so far: 5636.0
If we take 522 away from 579, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 7:
570 divided by 87 is 6 with a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 5636.6
Subtracting 522 from 570 leaves us 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.

Moving on to step 8:
87 can be fit into 480 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 5636.65
Subtract 435 from 480 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 9:
If we divide 450 by 87, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 5636.655
If we take 435 away from 450, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 5636.655, with a leftover of 0.0015.