21717629 ÷ 277 
We're looking to find how many times 277 goes into 21717629.

Step 1:
277 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 277

Advancing to step 2:
277 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 277

Advancing to step 3:
277 goes into 217 0 times with a remainder of 217.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 217 leaves us with 217.
Fetch the next digit (1) from the dividend, attach it to 217 and continue: 2171 / 277

Moving on to step 4:
2171 divided by 277 is 7 with a remainder of 232.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 1939 away from 2171, we end up with 232.
Grab the next digit (7) from the dividend, add it to 232, then carry on: 2327 / 277

Advancing to step 5:
277 can be fit into 2327 8 times, resulting in a remainder of 111.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
The remainder is 111 after subtracting 2216 from 2327.
Grab the next digit (6) from the dividend, add it to 111, then carry on: 1116 / 277

Advancing to step 6:
277 can be fit into 1116 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 784.0
Subtract 1108 from 1116 to get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 277

Going ahead to step 7:
277 can be fit into 82 0 times, resulting in a remainder of 82.
The number 0 becomes the next digit in our result. 
Result so far: 7840.0
If we subtract 0 from 82, we get 82.
Include the next digit (9) from the dividend after 82, then repeat: 829 / 277

Moving on to step 8:
The number 277 fits into 829 2 times, leaving a remainder of 275.
Use 2 as the next digit of our solution. 
Result so far: 78402.0
The remainder is 275 after subtracting 554 from 829.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Moving on to step 9:
If we divide 2750 by 277, we get 9 and a remainder of 257.
Use 9 as the next digit of our solution. 
Result so far: 78402.9
If we take 2493 away from 2750, we end up with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

On to step 10:
If we divide 2570 by 277, we get 9 and a remainder of 77.
Use 9 as the next digit of our solution. 
Result so far: 78402.99
Deduct 2493 from 2570 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

In conclusion, the division gives 78402.99 with a balance of 0.077.