We divide 388931 by 31
Let's see how many times 31 fits into 388931.

Moving on to step 1:
If we divide 3 by 31, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 31

Step 2:
The number 31 fits into 38 1 times, leaving a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 31 from 38 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 31

Going ahead to step 3:
78 divided by 31 is 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 62 from 78 leaves us with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 31

On to step 4:
169 divided by 31 is 5 with a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 125.0
If we subtract 155 from 169, we get 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 31

Let's proceed to step 5:
31 can be fit into 143 4 times, resulting in a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 1254.0
Subtracting 124 from 143 leaves us with 19.
Take the next digit (1) from the dividend and append it to 19, then repeat: 191 / 31

Step 6:
191 divided by 31 is 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 12546.0
If we take 186 away from 191, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
31 goes into 50 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 12546.1
If we take 31 away from 50, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 8:
31 goes into 190 6 times with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 12546.16
Subtracting 186 from 190 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
31 can be fit into 40 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 12546.161
The remainder is 9 after subtracting 31 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
31 goes into 90 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 12546.1612
The remainder is 28 after subtracting 62 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 11:
31 can be fit into 280 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 12546.16129
Subtracting 279 from 280 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.

Step 12:
If we divide 10 by 31, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 12546.16129
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
31 goes into 100 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 12546.1612903
If we take 93 away from 100, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 14:
The number 31 fits into 70 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 12546.16129032
Subtract 62 from 70 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 12546.16129032 with a balance of 8e-09.