We're dividing 31456483 by 987 
Our goal is to divide 31456483 by 987.

Advancing to step 1:
3 divided by 987 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 987

Step 2:
If we divide 31 by 987, we get 0 and a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Bring next digit (4) of the dividend behind the 31 and repeat the process: 314 / 987

Let's proceed to step 3:
If we divide 314 by 987, we get 0 and a remainder of 314.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 314, we get 314.
Bring next digit (5) of the dividend behind the 314 and repeat the process: 3145 / 987

Let's proceed to step 4:
When dividing 3145 by 987, we get 3 with a remainder of 184.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 2961 from 3145, we get 184.
Bring next digit (6) of the dividend behind the 184 and repeat the process: 1846 / 987

On to step 5:
987 can be fit into 1846 1 times, resulting in a remainder of 859.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
Subtract 987 from 1846 to get 859.
Append the next digit (4) from the dividend to 859 and continue with: 8594 / 987

On to step 6:
If we divide 8594 by 987, we get 8 and a remainder of 698.
Put 8 as the next digit of the answer. 
Result so far: 318.0
If we subtract 7896 from 8594, we get 698.
Grab the next digit (8) from the dividend, add it to 698, then carry on: 6988 / 987

On to step 7:
6988 divided by 987 is 7 with a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 3187.0
The remainder is 79 after subtracting 6909 from 6988.
Take the next digit (3) from the dividend and append it to 79, then repeat: 793 / 987

Step 8:
When dividing 793 by 987, we get 0 with a remainder of 793.
The number 0 becomes the next digit in our result. 
Result so far: 31870.0
Subtracting 0 from 793 leaves us with 793.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7930, and continue the process.

Let's proceed to step 9:
987 can be fit into 7930 8 times, resulting in a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 31870.8
Subtract 7896 from 7930 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
When dividing 340 by 987, we get 0 with a remainder of 340.
Use 0 as the next digit of our solution. 
Result so far: 31870.8
Subtract 0 from 340 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 11:
987 can be fit into 3400 3 times, resulting in a remainder of 439.
The number 3 becomes the next digit in our result. 
Result so far: 31870.803
If we take 2961 away from 3400, we end up with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Step 12:
If we divide 4390 by 987, we get 4 and a remainder of 442.
Record the quotient 4 as the next digit in the result. 
Result so far: 31870.8034
Subtracting 3948 from 4390 leaves us with 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Going ahead to step 13:
4420 divided by 987 is 4 with a remainder of 472.
Write down 4 as next digit of the result. 
Result so far: 31870.80344
If we subtract 3948 from 4420, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

The final result is 31870.80344 with a remainder of 0.000472.