We look at the division of 126530 by 3 
We want to divide 126530 by 3.

Let's proceed to step 1:
If we divide 1 by 3, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 3

Step 2:
The number 3 fits into 12 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 12 away from 12, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 3

On to step 3:
When dividing 6 by 3, we get 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Deduct 6 from 6 and we're left with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 3

On to step 4:
When dividing 5 by 3, we get 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 421.0
Deduct 3 from 5 and we're left with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 3

Step 5:
The number 3 fits into 23 7 times, leaving a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 4217.0
Subtracting 21 from 23 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 3

Going ahead to step 6:
The number 3 fits into 20 6 times, leaving a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 42176.0
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 3 fits into 20 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 42176.6
Subtracting 18 from 20 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
20 divided by 3 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 42176.66
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 42176.66 and a remainder of 0.002.