Let's divide 131020 by 3
We want to divide 131020 by 3.

Let's proceed to step 1:
3 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 3

Let's proceed to step 2:
13 divided by 3 is 4 with a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 12 from 13, we get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 3

Moving on to step 3:
11 divided by 3 is 3 with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 43.0
Deduct 9 from 11 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 3

Let's proceed to step 4:
20 divided by 3 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 436.0
Deduct 18 from 20 and we're left with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 3

Step 5:
The number 3 fits into 22 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 4367.0
Subtract 21 from 22 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 3

Advancing to step 6:
The number 3 fits into 10 3 times, leaving a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 43673.0
Subtracting 9 from 10 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.

Let's proceed to step 7:
If we divide 10 by 3, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 43673.3
If we take 9 away from 10, we end up 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.

On to step 8:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 43673.33
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 43673.33 and a remainder of 0.001.