21679265 divided by 680 
Our goal is to divide 21679265 by 680.

Advancing to step 1:
2 divided by 680 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 680

Going ahead to step 2:
680 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 680

On to step 3:
680 goes into 216 0 times with 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 (7) from the dividend to 216 and continue with: 2167 / 680

Advancing to step 4:
680 goes into 2167 3 times with a remainder of 127.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 2040 from 2167 and we're left with 127.
Grab the next digit (9) from the dividend, add it to 127, then carry on: 1279 / 680

On to step 5:
1279 divided by 680 is 1 with a remainder of 599.
Write down 1 as next digit of the result. 
Result so far: 31.0
Subtract 680 from 1279 to get 599.
Bring next digit (2) of the dividend behind the 599 and repeat the process: 5992 / 680

Moving on to step 6:
680 goes into 5992 8 times with a remainder of 552.
The next digit of our result is 8. 
Result so far: 318.0
If we take 5440 away from 5992, we end up with 552.
Fetch the next digit (6) from the dividend, attach it to 552 and continue: 5526 / 680

Advancing to step 7:
680 goes into 5526 8 times with a remainder of 86.
The next digit of our result is 8. 
Result so far: 3188.0
Subtracting 5440 from 5526 leaves us with 86.
Grab the next digit (5) from the dividend, add it to 86, then carry on: 865 / 680

Moving on to step 8:
The number 680 fits into 865 1 times, leaving a remainder of 185.
Write down 1 as next digit of the result. 
Result so far: 31881.0
If we take 680 away from 865, we end up with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Let's proceed to step 9:
1850 divided by 680 is 2 with a remainder of 490.
The next digit of our result is 2. 
Result so far: 31881.2
Subtracting 1360 from 1850 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 10:
When dividing 4900 by 680, we get 7 with a remainder of 140.
The next digit of our result is 7. 
Result so far: 31881.27
Subtract 4760 from 4900 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
The number 680 fits into 1400 2 times, leaving a remainder of 40.
The next digit of our result is 2. 
Result so far: 31881.272
Subtracting 1360 from 1400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
The number 680 fits into 400 0 times, leaving a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 31881.272
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 13:
4000 divided by 680 is 5 with a remainder of 600.
Use 5 as the next digit of our solution. 
Result so far: 31881.27205
If we take 3400 away from 4000, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 14:
680 can be fit into 6000 8 times, resulting in a remainder of 560.
Put 8 as the next digit of the answer. 
Result so far: 31881.272058
If we subtract 5440 from 6000, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 15:
When dividing 5600 by 680, we get 8 with a remainder of 160.
Put 8 as the next digit of the answer. 
Result so far: 31881.2720588
Deduct 5440 from 5600 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

In conclusion, the division gives 31881.2720588 with a balance of 1.6e-06.