We're dividing 891397 by 3 
Let's see how many times 3 fits into 891397.

On to step 1:
3 can be fit into 8 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we take 6 away from 8, we end up with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 3

Advancing to step 2:
29 divided by 3 is 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 29.0
The remainder is 2 after subtracting 27 from 29.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 3

Step 3:
3 can be fit into 21 7 times, resulting in a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 297.0
Subtracting 21 from 21 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 3

Step 4:
3 can be fit into 3 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 2971.0
The remainder is 0 after subtracting 3 from 3.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 3

On to step 5:
3 can be fit into 9 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 29713.0
If we take 9 away from 9, we end up with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 3

Let's proceed to step 6:
3 goes into 7 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 297132.0
Deduct 6 from 7 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.

Going ahead to step 7:
When dividing 10 by 3, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 297132.3
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.

Moving on to step 8:
When dividing 10 by 3, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 297132.33
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 outcome is 297132.33, with a leftover of 0.001.