We're dividing 641531 by 3 
We're looking to find how many times 3 goes into 641531.

Let's proceed to step 1:
6 divided by 3 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 6 from 6 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 3

Advancing to step 2:
4 divided by 3 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 1 after subtracting 3 from 4.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 3

Let's proceed to step 3:
3 can be fit into 11 3 times, resulting in a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 213.0
Subtracting 9 from 11 leaves us with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 3

Advancing to step 4:
3 goes into 25 8 times with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 2138.0
Deduct 24 from 25 and we're left with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 3

Step 5:
13 divided by 3 is 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 21384.0
The remainder is 1 after subtracting 12 from 13.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 3

Going ahead to step 6:
3 goes into 11 3 times with a remainder of 2.
The next digit of our result is 3. 
Result so far: 213843.0
If we take 9 away from 11, 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.

Advancing to step 7:
3 can be fit into 20 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 213843.6
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.

On to step 8:
20 divided by 3 is 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 213843.66
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 result is 213843.66 with a remainder of 0.002.