We divide 402001 by 1
We want to divide 402001 by 1.

Let's proceed to step 1:
When dividing 4 by 1, we get 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 4 from 4 leaves us with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Advancing to step 2:
1 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtract 0 from 0 to get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 1

Moving on to step 3:
2 divided by 1 is 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 402.0
The remainder is 0 after subtracting 2 from 2.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Advancing to step 4:
1 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4020.0
Subtract 0 from 0 to get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Step 5:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 40200.0
Subtracting 0 from 0 leaves us with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Let's proceed to step 6:
1 goes into 1 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 402001.0
If we take 1 away from 1, 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.

Moving on to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 402001.0
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.

Advancing to step 8:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 402001.0
Deduct 0 from 0 and we're left 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 402001.0 with a balance of 0.0.