21608505 ÷ 223 
We're looking to find how many times 223 goes into 21608505.

Going ahead to step 1:
223 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 223

Advancing to step 2:
223 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 223

Going ahead to step 3:
The number 223 fits into 216 0 times, leaving a remainder of 216.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 216, we get 216.
Append the next digit (0) from the dividend to 216 and continue with: 2160 / 223

Let's proceed to step 4:
If we divide 2160 by 223, we get 9 and a remainder of 153.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 2007 away from 2160, we end up with 153.
Bring next digit (8) of the dividend behind the 153 and repeat the process: 1538 / 223

Moving on to step 5:
223 can be fit into 1538 6 times, resulting in a remainder of 200.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
Subtract 1338 from 1538 to get 200.
Include the next digit (5) from the dividend after 200, then repeat: 2005 / 223

Step 6:
223 can be fit into 2005 8 times, resulting in a remainder of 221.
Put 8 as the next digit of the answer. 
Result so far: 968.0
Subtract 1784 from 2005 to get 221.
Bring next digit (0) of the dividend behind the 221 and repeat the process: 2210 / 223

Moving on to step 7:
223 can be fit into 2210 9 times, resulting in a remainder of 203.
Write down 9 as next digit of the result. 
Result so far: 9689.0
Subtract 2007 from 2210 to get 203.
Include the next digit (5) from the dividend after 203, then repeat: 2035 / 223

Let's proceed to step 8:
If we divide 2035 by 223, we get 9 and a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 96899.0
The remainder is 28 after subtracting 2007 from 2035.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
When dividing 280 by 223, we get 1 with a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 96899.1
The remainder is 57 after subtracting 223 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 10:
223 goes into 570 2 times with a remainder of 124.
Use 2 as the next digit of our solution. 
Result so far: 96899.12
If we subtract 446 from 570, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 11:
When dividing 1240 by 223, we get 5 with a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 96899.125
The remainder is 125 after subtracting 1115 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 12:
1250 divided by 223 is 5 with a remainder of 135.
Record the quotient 5 as the next digit in the result. 
Result so far: 96899.1255
If we take 1115 away from 1250, we end up with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

The final outcome is 96899.1255, with a leftover of 0.00135.