We're dividing 31487 by 43 
We want to figure out the number of times 31487 can be divided by 43.

Step 1:
When dividing 3 by 43, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 43

On to step 2:
43 goes into 31 0 times with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 43

On to step 3:
When dividing 314 by 43, we get 7 with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 301 from 314 to get 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 43

Going ahead to step 4:
43 goes into 138 3 times with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 73.0
The remainder is 9 after subtracting 129 from 138.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 43

Going ahead to step 5:
43 goes into 97 2 times with a remainder of 11.
The next digit of our result is 2. 
Result so far: 732.0
If we subtract 86 from 97, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 6:
The number 43 fits into 110 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 732.2
The remainder is 24 after subtracting 86 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
43 goes into 240 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 732.25
Deduct 215 from 240 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 8:
The number 43 fits into 250 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 732.255
If we subtract 215 from 250, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 732.255, and the remainder is 0.0035.