We're dividing 221772 by 9 
We want to figure out the number of times 221772 can be divided by 9.

Step 1:
If we divide 2 by 9, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 9

Let's proceed to step 2:
When dividing 22 by 9, we get 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 18 from 22 to get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 9

Step 3:
9 goes into 41 4 times with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 36 from 41 to get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 9

Advancing to step 4:
The number 9 fits into 57 6 times, leaving a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 246.0
Deduct 54 from 57 and we're left with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 9

On to step 5:
When dividing 37 by 9, we get 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 2464.0
If we subtract 36 from 37, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 9

Step 6:
9 can be fit into 12 1 times, resulting in a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 24641.0
Subtracting 9 from 12 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
9 goes into 30 3 times with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 24641.3
If we subtract 27 from 30, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 8:
The number 9 fits into 30 3 times, leaving a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 24641.33
If we subtract 27 from 30, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 24641.33 with a remainder of 0.003.