We divide 420860 by 30
We want to divide 420860 by 30.

Advancing to step 1:
30 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 30

Moving on to step 2:
If we divide 42 by 30, we get 1 and a remainder of 12.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 12 after subtracting 30 from 42.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 30

Let's proceed to step 3:
If we divide 120 by 30, we get 4 and a remainder of 0.
The next digit of our result is 4. 
Result so far: 14.0
If we take 120 away from 120, we end up with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 30

Step 4:
8 divided by 30 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 140.0
If we take 0 away from 8, we end up with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 30

Going ahead to step 5:
86 divided by 30 is 2 with a remainder of 26.
Write down 2 as next digit of the result. 
Result so far: 1402.0
Subtracting 60 from 86 leaves us with 26.
Append the next digit (0) from the dividend to 26 and continue with: 260 / 30

On to step 6:
260 divided by 30 is 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 14028.0
Subtracting 240 from 260 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 14028.6
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
When dividing 200 by 30, we get 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 14028.66
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 14028.66 with a remaining 0.02.