We look at the division of 285451 by 3 
We're looking to find how many times 3 goes into 285451.

Let's proceed to step 1:
2 divided by 3 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 3

Advancing to step 2:
3 goes into 28 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 27 from 28, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 3

Advancing to step 3:
3 goes into 15 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 95.0
If we subtract 15 from 15, we get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 3

On to step 4:
The number 3 fits into 4 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 951.0
Subtract 3 from 4 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 3

Let's proceed to step 5:
When dividing 15 by 3, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 9515.0
The remainder is 0 after subtracting 15 from 15.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 3

Going ahead to step 6:
3 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 95150.0
Subtracting 0 from 1 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.

Going ahead to step 7:
If we divide 10 by 3, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 95150.3
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
3 goes into 10 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 95150.33
Deduct 9 from 10 and we're left 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.

The final result is 95150.33 with a remainder of 0.001.