851904 ÷ 3 
We want to figure out the number of times 851904 can be divided by 3.

Moving on to step 1:
3 goes into 8 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 6 from 8, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 3

Advancing to step 2:
The number 3 fits into 25 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Deduct 24 from 25 and we're left with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 3

On to step 3:
The number 3 fits into 11 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 283.0
If we subtract 9 from 11, we get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 3

Step 4:
The number 3 fits into 29 9 times, leaving a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 2839.0
The remainder is 2 after subtracting 27 from 29.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 3

Moving on to step 5:
When dividing 20 by 3, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 28396.0
Subtracting 18 from 20 leaves us with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 3

Going ahead to step 6:
The number 3 fits into 24 8 times, leaving a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 283968.0
Subtract 24 from 24 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.

Let's proceed to step 7:
0 divided by 3 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 283968.0
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.

Advancing to step 8:
If we divide 0 by 3, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 283968.0
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.

After the division, we end up with 283968.0 and a remainder of 0.0.