212971 ÷ 2 
We want to figure out the number of times 212971 can be divided by 2.

On to step 1:
2 can be fit into 2 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 2 from 2 leaves us with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 2

On to step 2:
The number 2 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

Moving on to step 3:
The number 2 fits into 12 6 times, leaving a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 106.0
Deduct 12 from 12 and we're left with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 2

Step 4:
9 divided by 2 is 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 1064.0
The remainder is 1 after subtracting 8 from 9.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 2

Let's proceed to step 5:
17 divided by 2 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 10648.0
Deduct 16 from 17 and we're left with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 2

Moving on to step 6:
When dividing 11 by 2, we get 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 106485.0
If we take 10 away from 11, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
When dividing 10 by 2, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 106485.5
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.

Let's proceed to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 106485.5
Deduct 0 from 0 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.

Moving on to step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 106485.5
Deduct 0 from 0 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.

The quotient of the division is 106485.5, and the remainder is 0.0.