21244366 ÷ 773 
Our goal is to divide 21244366 by 773.

Step 1:
If we divide 2 by 773, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 773

Moving on to step 2:
773 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 773

Going ahead to step 3:
When dividing 212 by 773, we get 0 with a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 212 after subtracting 0 from 212.
Append the next digit (4) from the dividend to 212 and continue with: 2124 / 773

On to step 4:
When dividing 2124 by 773, we get 2 with a remainder of 578.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1546 from 2124 and we're left with 578.
Grab the next digit (4) from the dividend, add it to 578, then carry on: 5784 / 773

Step 5:
773 goes into 5784 7 times with a remainder of 373.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
If we take 5411 away from 5784, we end up with 373.
Take the next digit (3) from the dividend and append it to 373, then repeat: 3733 / 773

On to step 6:
773 goes into 3733 4 times with a remainder of 641.
Put 4 as the next digit of the answer. 
Result so far: 274.0
If we subtract 3092 from 3733, we get 641.
Take the next digit (6) from the dividend and append it to 641, then repeat: 6416 / 773

Let's proceed to step 7:
If we divide 6416 by 773, we get 8 and a remainder of 232.
Write down 8 as next digit of the result. 
Result so far: 2748.0
If we take 6184 away from 6416, we end up with 232.
Include the next digit (6) from the dividend after 232, then repeat: 2326 / 773

Moving on to step 8:
773 goes into 2326 3 times with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 27483.0
If we take 2319 away from 2326, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 9:
When dividing 70 by 773, we get 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 27483.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
773 goes into 700 0 times with a remainder of 700.
Use 0 as the next digit of our solution. 
Result so far: 27483.0
Subtracting 0 from 700 leaves us with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final outcome is 27483.0, with a leftover of 0.7.