21705273 ÷ 923 
Our goal is to divide 21705273 by 923.

Step 1:
If we divide 2 by 923, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 923

Moving on to step 2:
When dividing 21 by 923, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 923

Moving on to step 3:
The number 923 fits into 217 0 times, leaving a remainder of 217.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 217 and we're left with 217.
Grab the next digit (0) from the dividend, add it to 217, then carry on: 2170 / 923

Advancing to step 4:
The number 923 fits into 2170 2 times, leaving a remainder of 324.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 1846 from 2170 to get 324.
Grab the next digit (5) from the dividend, add it to 324, then carry on: 3245 / 923

Moving on to step 5:
When dividing 3245 by 923, we get 3 with a remainder of 476.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtract 2769 from 3245 to get 476.
Grab the next digit (2) from the dividend, add it to 476, then carry on: 4762 / 923

Step 6:
The number 923 fits into 4762 5 times, leaving a remainder of 147.
The next digit of our result is 5. 
Result so far: 235.0
Subtracting 4615 from 4762 leaves us with 147.
Fetch the next digit (7) from the dividend, attach it to 147 and continue: 1477 / 923

Moving on to step 7:
The number 923 fits into 1477 1 times, leaving a remainder of 554.
Use 1 as the next digit of our solution. 
Result so far: 2351.0
If we subtract 923 from 1477, we get 554.
Bring next digit (3) of the dividend behind the 554 and repeat the process: 5543 / 923

Going ahead to step 8:
When dividing 5543 by 923, we get 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 23516.0
Subtracting 5538 from 5543 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
923 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 23516.0
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
The number 923 fits into 500 0 times, leaving a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 23516.0
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Our division results in 23516.0 with a remaining 0.5.