15939892 ÷ 12 
We want to divide 15939892 by 12.

Step 1:
12 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 12

Let's proceed to step 2:
If we divide 15 by 12, we get 1 and a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 12 from 15, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 12

Let's proceed to step 3:
12 goes into 39 3 times with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 36 from 39, we get 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 12

Moving on to step 4:
12 goes into 33 2 times with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 132.0
Subtracting 24 from 33 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 12

Step 5:
99 divided by 12 is 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 1328.0
Subtract 96 from 99 to get 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 12

Advancing to step 6:
38 divided by 12 is 3 with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 13283.0
If we subtract 36 from 38, we get 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 12

Going ahead to step 7:
12 goes into 29 2 times with a remainder of 5.
The next digit of our result is 2. 
Result so far: 132832.0
Subtracting 24 from 29 leaves us with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 12

Step 8:
When dividing 52 by 12, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 1328324.0
If we take 48 away from 52, 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.

On to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 1328324.3
The remainder is 4 after subtracting 36 from 40.
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 10:
40 divided by 12 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 1328324.33
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.

In conclusion, the division gives 1328324.33 with a balance of 0.004.