We divide 31511500 by 3
We want to divide 31511500 by 3.

Let's proceed to step 1:
When dividing 3 by 3, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 3 from 3 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 3

Advancing to step 2:
The number 3 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 3

Advancing to step 3:
3 can be fit into 15 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 105.0
If we take 15 away from 15, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Going ahead to step 4:
1 divided by 3 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 1050.0
Subtract 0 from 1 to get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 3

Let's proceed to step 5:
3 goes into 11 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 10503.0
The remainder is 2 after subtracting 9 from 11.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 3

Step 6:
25 divided by 3 is 8 with a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 105038.0
Deduct 24 from 25 and we're left with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 3

Step 7:
When dividing 10 by 3, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 1050383.0
Subtracting 9 from 10 leaves us with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 3

Advancing to step 8:
3 goes into 10 3 times with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 10503833.0
If we take 9 away from 10, we end up 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.

Going ahead to step 9:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 10503833.3
Deduct 9 from 10 and we're left 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.

On to step 10:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 10503833.33
Subtracting 9 from 10 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.

The quotient of the division is 10503833.33, and the remainder is 0.001.