486018 ÷ 90 
We want to figure out the number of times 486018 can be divided by 90.

Going ahead to step 1:
4 divided by 90 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 90

Going ahead to step 2:
When dividing 48 by 90, we get 0 with a remainder of 48.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 48 to get 48.
Take the next digit (6) from the dividend and append it to 48, then repeat: 486 / 90

Let's proceed to step 3:
When dividing 486 by 90, we get 5 with a remainder of 36.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 450 away from 486, we end up with 36.
Include the next digit (0) from the dividend after 36, then repeat: 360 / 90

On to step 4:
If we divide 360 by 90, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 54.0
Deduct 360 from 360 and we're left with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 90

On to step 5:
1 divided by 90 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 540.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 90

Step 6:
90 goes into 18 0 times with a remainder of 18.
The next digit of our result is 0. 
Result so far: 5400.0
The remainder is 18 after subtracting 0 from 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
90 goes into 180 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 5400.2
The remainder is 0 after subtracting 180 from 180.
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 8:
When dividing 0 by 90, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5400.2
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.

Step 9:
The number 90 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5400.2
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.

The final outcome is 5400.2, with a leftover of 0.0.