We divide 901866 by 3
Let's see how many times 3 fits into 901866.

Going ahead to step 1:
The number 3 fits into 9 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 9 from 9 to get 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 3

Let's proceed to step 2:
When dividing 0 by 3, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we subtract 0 from 0, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 3

Step 3:
When dividing 1 by 3, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 300.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 3

Step 4:
3 goes into 18 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 3006.0
Subtract 18 from 18 to get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 3

Advancing to step 5:
3 can be fit into 6 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 30062.0
If we take 6 away from 6, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 3

Step 6:
The number 3 fits into 6 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 300622.0
The remainder is 0 after subtracting 6 from 6.
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 3, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 300622.0
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.

Going ahead to step 8:
3 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 300622.0
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.

The final result is 300622.0 with a remainder of 0.0.