We look at the division of 19846021 by 2 
Our goal is to divide 19846021 by 2.

Going ahead to step 1:
The number 2 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 2

On to step 2:
If we divide 19 by 2, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 18 from 19 to get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 2

Step 3:
18 divided by 2 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtract 18 from 18 to get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 2

Let's proceed to step 4:
If we divide 4 by 2, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 992.0
If we take 4 away from 4, we end up with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

Step 5:
The number 2 fits into 6 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 9923.0
Deduct 6 from 6 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 2

Step 6:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 99230.0
Subtracting 0 from 0 leaves us with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 2

Advancing to step 7:
When dividing 2 by 2, we get 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 992301.0
If we subtract 2 from 2, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 2

Moving on to step 8:
When dividing 1 by 2, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 9923010.0
Subtract 0 from 1 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.

Going ahead to 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: 9923010.5
Subtracting 10 from 10 leaves us 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 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 9923010.5
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:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 9923010.5
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.

After the division, we end up with 9923010.5 and a remainder of 0.0.