142312 ÷ 31 
Let's see how many times 31 fits into 142312.

Step 1:
If we divide 1 by 31, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 31

On to step 2:
When dividing 14 by 31, we get 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 31

Moving on to step 3:
The number 31 fits into 142 4 times, leaving a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 124 from 142 leaves us with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 31

Step 4:
31 goes into 183 5 times with a remainder of 28.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we take 155 away from 183, we end up with 28.
Include the next digit (1) from the dividend after 28, then repeat: 281 / 31

Advancing to step 5:
31 can be fit into 281 9 times, resulting in a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 459.0
Subtract 279 from 281 to get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 31

Let's proceed to step 6:
When dividing 22 by 31, we get 0 with a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 4590.0
Deduct 0 from 22 and we're left 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 7:
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: 4590.7
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.

Advancing to step 8:
If we divide 30 by 31, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 4590.7
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 9:
When dividing 300 by 31, we get 9 with a remainder of 21.
The next digit of our result is 9. 
Result so far: 4590.709
If we subtract 279 from 300, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
31 can be fit into 210 6 times, resulting in a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 4590.7096
Subtracting 186 from 210 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
The number 31 fits into 240 7 times, leaving a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 4590.70967
If we subtract 217 from 240, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 12:
230 divided by 31 is 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 4590.709677
If we subtract 217 from 230, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 4590.709677 with a balance of 1.3e-06.