521384 ÷ 3 
We want to figure out the number of times 521384 can be divided by 3.

Advancing to step 1:
3 can be fit into 5 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 3 from 5 leaves us with 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 3

Advancing to step 2:
3 can be fit into 22 7 times, resulting in a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 1 after subtracting 21 from 22.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 3

Moving on to step 3:
If we divide 11 by 3, we get 3 and a remainder of 2.
The next digit of our result is 3. 
Result so far: 173.0
If we take 9 away from 11, we end up with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 3

Going ahead to step 4:
3 can be fit into 23 7 times, resulting in a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 1737.0
Subtract 21 from 23 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 3

Advancing to step 5:
3 goes into 28 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 17379.0
If we take 27 away from 28, we end up with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 3

Let's proceed to step 6:
When dividing 14 by 3, we get 4 with a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 173794.0
Subtract 12 from 14 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
If we divide 20 by 3, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 173794.6
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
3 goes into 20 6 times with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 173794.66
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 173794.66, with a leftover of 0.002.