21416455 ÷ 923 
Our goal is to divide 21416455 by 923.

Let's proceed to step 1:
If we divide 2 by 923, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 923

On to step 2:
21 divided by 923 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 923

Let's proceed to step 3:
The number 923 fits into 214 0 times, leaving a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 214, we end up with 214.
Append the next digit (1) from the dividend to 214 and continue with: 2141 / 923

Let's proceed to step 4:
923 can be fit into 2141 2 times, resulting in a remainder of 295.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1846 from 2141 leaves us with 295.
Include the next digit (6) from the dividend after 295, then repeat: 2956 / 923

Step 5:
923 goes into 2956 3 times with a remainder of 187.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we subtract 2769 from 2956, we get 187.
Append the next digit (4) from the dividend to 187 and continue with: 1874 / 923

Going ahead to step 6:
The number 923 fits into 1874 2 times, leaving a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 232.0
If we subtract 1846 from 1874, we get 28.
Grab the next digit (5) from the dividend, add it to 28, then carry on: 285 / 923

Let's proceed to step 7:
When dividing 285 by 923, we get 0 with a remainder of 285.
Write down 0 as next digit of the result. 
Result so far: 2320.0
Deduct 0 from 285 and we're left with 285.
Take the next digit (5) from the dividend and append it to 285, then repeat: 2855 / 923

Advancing to step 8:
2855 divided by 923 is 3 with a remainder of 86.
Write down 3 as next digit of the result. 
Result so far: 23203.0
Deduct 2769 from 2855 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 9:
860 divided by 923 is 0 with a remainder of 860.
Write down 0 as next digit of the result. 
Result so far: 23203.0
If we subtract 0 from 860, we get 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Advancing to step 10:
923 can be fit into 8600 9 times, resulting in a remainder of 293.
The next digit of our result is 9. 
Result so far: 23203.09
The remainder is 293 after subtracting 8307 from 8600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Going ahead to step 11:
The number 923 fits into 2930 3 times, leaving a remainder of 161.
Record the quotient 3 as the next digit in the result. 
Result so far: 23203.093
Subtract 2769 from 2930 to get 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

On to step 12:
923 goes into 1610 1 times with a remainder of 687.
The next digit of our result is 1. 
Result so far: 23203.0931
If we subtract 923 from 1610, we get 687.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6870, and continue the process.

Going ahead to step 13:
923 goes into 6870 7 times with a remainder of 409.
Use 7 as the next digit of our solution. 
Result so far: 23203.09317
If we subtract 6461 from 6870, we get 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Going ahead to step 14:
4090 divided by 923 is 4 with a remainder of 398.
Write down 4 as next digit of the result. 
Result so far: 23203.093174
Deduct 3692 from 4090 and we're left with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Step 15:
The number 923 fits into 3980 4 times, leaving a remainder of 288.
Put 4 as the next digit of the answer. 
Result so far: 23203.0931744
Deduct 3692 from 3980 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

The final outcome is 23203.0931744, with a leftover of 2.88e-06.