31890877 ÷ 12 
We want to divide 31890877 by 12.

Going ahead to step 1:
The number 12 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 12

Moving on to step 2:
12 goes into 31 2 times with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 24 from 31, we get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 12

On to step 3:
If we divide 78 by 12, we get 6 and a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Deduct 72 from 78 and we're left with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 12

Let's proceed to step 4:
69 divided by 12 is 5 with a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 265.0
Subtract 60 from 69 to get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 12

Moving on to step 5:
When dividing 90 by 12, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 2657.0
If we take 84 away from 90, we end up with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 12

Let's proceed to step 6:
When dividing 68 by 12, we get 5 with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 26575.0
Subtract 60 from 68 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 12

Moving on to step 7:
87 divided by 12 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 265757.0
Subtract 84 from 87 to get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 12

Let's proceed to step 8:
12 goes into 37 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 2657573.0
If we subtract 36 from 37, we get 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 9:
12 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 2657573.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 2657573.08
Deduct 96 from 100 and we're left 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.

Moving on to step 11:
If we divide 40 by 12, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 2657573.083
Subtracting 36 from 40 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.

Moving on to step 12:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 2657573.0833
If we take 36 away from 40, we end up 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.

The quotient of the division is 2657573.0833, and the remainder is 4e-05.