840102 ÷ 3 
We want to divide 840102 by 3.

Moving on to step 1:
8 divided by 3 is 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 6 away from 8, we end up with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 3

Let's proceed to step 2:
3 goes into 24 8 times with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
The remainder is 0 after subtracting 24 from 24.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 3

Let's proceed to step 3:
If we divide 0 by 3, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 280.0
If we take 0 away from 0, we end up with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 3

Step 4:
If we divide 1 by 3, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 2800.0
If we take 0 away from 1, we end up with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 3

Moving on to step 5:
If we divide 10 by 3, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 28003.0
Subtract 9 from 10 to get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 3

Advancing to step 6:
12 divided by 3 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 280034.0
If we take 12 away from 12, 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.

On to step 7:
When dividing 0 by 3, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 280034.0
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.

Let's proceed to step 8:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 280034.0
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.

Our division results in 280034.0 with a remaining 0.0.