We look at the division of 30149 by 31 
Let's see how many times 31 fits into 30149.

On to step 1:
If we divide 3 by 31, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 31

Going ahead to step 2:
31 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Append the next digit (1) from the dividend to 30 and continue with: 301 / 31

Advancing to step 3:
When dividing 301 by 31, we get 9 with a remainder of 22.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 279 from 301 to get 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 31

Let's proceed to step 4:
224 divided by 31 is 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
Deduct 217 from 224 and we're left with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 31

Step 5:
When dividing 79 by 31, we get 2 with a remainder of 17.
The next digit of our result is 2. 
Result so far: 972.0
If we subtract 62 from 79, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 6:
When dividing 170 by 31, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 972.5
Subtract 155 from 170 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
The number 31 fits into 150 4 times, leaving a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 972.54
Deduct 124 from 150 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
The number 31 fits into 260 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 972.548
Subtracting 248 from 260 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
If we divide 120 by 31, we get 3 and a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 972.5483
Subtracting 93 from 120 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 10:
If we divide 270 by 31, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 972.54838
Subtracting 248 from 270 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 11:
The number 31 fits into 220 7 times, leaving a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 972.548387
If we take 217 away from 220, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 12:
31 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 972.548387
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 13:
The number 31 fits into 300 9 times, leaving a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 972.54838709
If we take 279 away from 300, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

In conclusion, the division gives 972.54838709 with a balance of 2.1e-08.