421549 ÷ 30 
Let's see how many times 30 fits into 421549.

Going ahead to step 1:
4 divided by 30 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 30

Let's proceed to step 2:
30 can be fit into 42 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 30 from 42, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 30

On to step 3:
If we divide 121 by 30, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 120 from 121, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 30

Let's proceed to step 4:
30 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 140.0
Deduct 0 from 15 and we're left with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 30

Advancing to step 5:
When dividing 154 by 30, we get 5 with a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 1405.0
If we take 150 away from 154, we end up with 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 30

Advancing to step 6:
If we divide 49 by 30, we get 1 and a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 14051.0
Subtracting 30 from 49 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
190 divided by 30 is 6 with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 14051.6
Subtract 180 from 190 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 14051.63
Subtracting 90 from 100 leaves us 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 9:
When dividing 100 by 30, we get 3 with a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 14051.633
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 14051.633 with a balance of 0.001.