We look at the division of 131399 by 30 
We're looking to find how many times 30 goes into 131399.

On to step 1:
When dividing 1 by 30, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 30

Step 2:
30 goes into 13 0 times with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 30

Moving on to step 3:
30 goes into 131 4 times with a remainder of 11.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 120 from 131, we get 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 30

Moving on to step 4:
When dividing 113 by 30, we get 3 with a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 43.0
The remainder is 23 after subtracting 90 from 113.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 30

Going ahead to step 5:
30 can be fit into 239 7 times, resulting in a remainder of 29.
The number 7 becomes the next digit in our result. 
Result so far: 437.0
Subtracting 210 from 239 leaves us with 29.
Fetch the next digit (9) from the dividend, attach it to 29 and continue: 299 / 30

Going ahead to step 6:
If we divide 299 by 30, we get 9 and a remainder of 29.
The next digit of our result is 9. 
Result so far: 4379.0
Subtracting 270 from 299 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
30 can be fit into 290 9 times, resulting in a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 4379.9
Deduct 270 from 290 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
200 divided by 30 is 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 4379.96
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
If we divide 200 by 30, we get 6 and a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 4379.966
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 4379.966, and the remainder is 0.002.