We divide 585489 by 12
We want to figure out the number of times 585489 can be divided by 12.

Moving on to step 1:
If we divide 5 by 12, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 12

Moving on to step 2:
12 can be fit into 58 4 times, resulting in a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 48 from 58 to get 10.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 12

Let's proceed to step 3:
The number 12 fits into 105 8 times, leaving a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 48.0
The remainder is 9 after subtracting 96 from 105.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 12

On to step 4:
If we divide 94 by 12, we get 7 and a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 487.0
Subtracting 84 from 94 leaves us with 10.
Fetch the next digit (8) from the dividend, attach it to 10 and continue: 108 / 12

Moving on to step 5:
If we divide 108 by 12, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 4879.0
Subtracting 108 from 108 leaves us with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 12

Step 6:
9 divided by 12 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 48790.0
Subtract 0 from 9 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
The number 12 fits into 90 7 times, leaving a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 48790.7
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
12 goes into 60 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 48790.75
If we take 60 away from 60, we end up 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.

Advancing to step 9:
12 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 48790.75
If we take 0 away from 0, we end up 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.

On to step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 48790.75
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.

In conclusion, the division gives 48790.75 with a balance of 0.0.