12154966 divided by 31 
We want to figure out the number of times 12154966 can be divided by 31.

Step 1:
If we divide 1 by 31, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 31

Let's proceed to step 2:
The number 31 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 31

Advancing to step 3:
The number 31 fits into 121 3 times, leaving a remainder of 28.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 93 from 121 to get 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 31

Advancing to step 4:
The number 31 fits into 285 9 times, leaving a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Deduct 279 from 285 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 31

Advancing to step 5:
If we divide 64 by 31, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 392.0
Subtract 62 from 64 to get 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 31

Let's proceed to step 6:
If we divide 29 by 31, we get 0 and a remainder of 29.
The next digit of our result is 0. 
Result so far: 3920.0
If we take 0 away from 29, we end up with 29.
Append the next digit (6) from the dividend to 29 and continue with: 296 / 31

Advancing to step 7:
31 can be fit into 296 9 times, resulting in a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 39209.0
Subtracting 279 from 296 leaves us with 17.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 31

Moving on to step 8:
When dividing 176 by 31, we get 5 with a remainder of 21.
Use 5 as the next digit of our solution. 
Result so far: 392095.0
Subtracting 155 from 176 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 9:
If we divide 210 by 31, we get 6 and a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 392095.6
The remainder is 24 after subtracting 186 from 210.
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 10:
31 can be fit into 240 7 times, resulting in a remainder of 23.
The next digit of our result is 7. 
Result so far: 392095.67
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.

On to step 11:
230 divided by 31 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 392095.677
The remainder is 13 after subtracting 217 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 392095.677 and a remainder of 0.0013.