21476515 divided by 2 
We want to figure out the number of times 21476515 can be divided by 2.

Let's proceed to step 1:
2 divided by 2 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 2 from 2, we get 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 2

Advancing to step 2:
2 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 1, we get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 2

On to step 3:
2 goes into 14 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 107.0
Subtract 14 from 14 to get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 2

Let's proceed to step 4:
2 goes into 7 3 times with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 1073.0
If we take 6 away from 7, we end up with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 2

Step 5:
2 can be fit into 16 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 10738.0
Deduct 16 from 16 and we're left with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

Step 6:
The number 2 fits into 5 2 times, leaving a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 107382.0
The remainder is 1 after subtracting 4 from 5.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 2

Going ahead to step 7:
The number 2 fits into 11 5 times, leaving a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 1073825.0
Subtract 10 from 11 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 2

Moving on to step 8:
2 goes into 15 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 10738257.0
If we subtract 14 from 15, 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:
When dividing 10 by 2, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 10738257.5
Deduct 10 from 10 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10738257.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
0 divided by 2 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10738257.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 10738257.5, with a leftover of 0.0.