We look at the division of 839573 by 1 
Our goal is to divide 839573 by 1.

Step 1:
When dividing 8 by 1, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 8 away from 8, we end up with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Going ahead to step 2:
1 goes into 3 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 83.0
Subtract 3 from 3 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 1

Step 3:
If we divide 9 by 1, we get 9 and a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 839.0
If we take 9 away from 9, we end up with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 1

Advancing to step 4:
If we divide 5 by 1, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 8395.0
The remainder is 0 after subtracting 5 from 5.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

Moving on to step 5:
1 goes into 7 7 times with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 83957.0
If we take 7 away from 7, we end up with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 1

On to step 6:
3 divided by 1 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 839573.0
Subtracting 3 from 3 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.

Advancing to step 7:
1 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 839573.0
If we take 0 away from 0, we end up 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.

Let's proceed to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 839573.0
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.

In conclusion, the division gives 839573.0 with a balance of 0.0.