We're dividing 586990 by 12 
We want to divide 586990 by 12.

Going ahead to step 1:
If we divide 5 by 12, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 12

Let's proceed to step 2:
58 divided by 12 is 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 48 from 58 leaves us with 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 12

Step 3:
12 goes into 106 8 times with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Subtract 96 from 106 to get 10.
Fetch the next digit (9) from the dividend, attach it to 10 and continue: 109 / 12

Going ahead to step 4:
109 divided by 12 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 489.0
The remainder is 1 after subtracting 108 from 109.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 12

Moving on to step 5:
12 can be fit into 19 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 4891.0
If we subtract 12 from 19, we get 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 12

Moving on to step 6:
The number 12 fits into 70 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 48915.0
If we take 60 away from 70, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
100 divided by 12 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 48915.8
If we subtract 96 from 100, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
When dividing 40 by 12, we get 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 48915.83
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 48915.833
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 48915.833 with a remaining 0.0004.