We divide 21217687 by 774
We want to figure out the number of times 21217687 can be divided by 774.

On to step 1:
2 divided by 774 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 774

Moving on to step 2:
When dividing 21 by 774, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 774

Step 3:
The number 774 fits into 212 0 times, leaving a remainder of 212.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Bring next digit (1) of the dividend behind the 212 and repeat the process: 2121 / 774

Let's proceed to step 4:
774 can be fit into 2121 2 times, resulting in a remainder of 573.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 1548 from 2121 to get 573.
Append the next digit (7) from the dividend to 573 and continue with: 5737 / 774

On to step 5:
The number 774 fits into 5737 7 times, leaving a remainder of 319.
The next digit of our result is 7. 
Result so far: 27.0
Deduct 5418 from 5737 and we're left with 319.
Fetch the next digit (6) from the dividend, attach it to 319 and continue: 3196 / 774

Let's proceed to step 6:
If we divide 3196 by 774, we get 4 and a remainder of 100.
The number 4 becomes the next digit in our result. 
Result so far: 274.0
The remainder is 100 after subtracting 3096 from 3196.
Bring next digit (8) of the dividend behind the 100 and repeat the process: 1008 / 774

Let's proceed to step 7:
774 can be fit into 1008 1 times, resulting in a remainder of 234.
Put 1 as the next digit of the answer. 
Result so far: 2741.0
The remainder is 234 after subtracting 774 from 1008.
Grab the next digit (7) from the dividend, add it to 234, then carry on: 2347 / 774

Moving on to step 8:
If we divide 2347 by 774, we get 3 and a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 27413.0
Deduct 2322 from 2347 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
The number 774 fits into 250 0 times, leaving a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 27413.0
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 10:
774 can be fit into 2500 3 times, resulting in a remainder of 178.
Put 3 as the next digit of the answer. 
Result so far: 27413.03
Deduct 2322 from 2500 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

On to step 11:
The number 774 fits into 1780 2 times, leaving a remainder of 232.
Use 2 as the next digit of our solution. 
Result so far: 27413.032
Deduct 1548 from 1780 and we're left with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Step 12:
When dividing 2320 by 774, we get 2 with a remainder of 772.
The next digit of our result is 2. 
Result so far: 27413.0322
If we take 1548 away from 2320, we end up with 772.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7720, and continue the process.

In conclusion, the division gives 27413.0322 with a balance of 0.00772.