We divide 66428651 by 2
We want to divide 66428651 by 2.

Advancing to step 1:
The number 2 fits into 6 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 6 from 6 to get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

Advancing to step 2:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 33.0
Subtracting 6 from 6 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Advancing to step 3:
2 goes into 4 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 332.0
Deduct 4 from 4 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 2

Step 4:
2 goes into 2 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 3321.0
If we take 2 away from 2, we end up with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 2

Going ahead to step 5:
If we divide 8 by 2, we get 4 and a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 33214.0
If we subtract 8 from 8, we get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 2

Let's proceed to step 6:
When dividing 6 by 2, we get 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 332143.0
Subtract 6 from 6 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

Step 7:
When dividing 5 by 2, we get 2 with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 3321432.0
Subtracting 4 from 5 leaves us with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 2

On to step 8:
2 goes into 11 5 times with a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 33214325.0
Subtract 10 from 11 to 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.

On to step 9:
When dividing 10 by 2, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 33214325.5
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
2 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 33214325.5
If we take 0 away from 0, we end up 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.

Advancing to step 11:
0 divided by 2 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 33214325.5
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.

The final outcome is 33214325.5, with a leftover of 0.0.