We look at the division of 840009 by 4 
Our goal is to divide 840009 by 4.

Moving on to step 1:
When dividing 8 by 4, we get 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 8 from 8, we get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 4

Step 2:
4 divided by 4 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 4 from 4, we get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 4

Advancing to step 3:
When dividing 0 by 4, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
If we take 0 away from 0, we end up with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 4

On to step 4:
4 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2100.0
The remainder is 0 after subtracting 0 from 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 4

Moving on to step 5:
4 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21000.0
Deduct 0 from 0 and we're left with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 4

Going ahead to step 6:
When dividing 9 by 4, we get 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 210002.0
Subtracting 8 from 9 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
When dividing 10 by 4, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 210002.2
If we subtract 8 from 10, 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.

Moving on to step 8:
4 can be fit into 20 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 210002.25
Subtract 20 from 20 to 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.

On to step 9:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 210002.25
The remainder is 0 after subtracting 0 from 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 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 210002.25
Subtracting 0 from 0 leaves us 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.

In conclusion, the division gives 210002.25 with a balance of 0.0.