21113836 divided by 680 
We want to figure out the number of times 21113836 can be divided by 680.

On to step 1:
680 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 680

Advancing to step 2:
21 divided by 680 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 680

Moving on to step 3:
The number 680 fits into 211 0 times, leaving a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 211 leaves us with 211.
Include the next digit (1) from the dividend after 211, then repeat: 2111 / 680

Advancing to step 4:
680 can be fit into 2111 3 times, resulting in a remainder of 71.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 2040 away from 2111, we end up with 71.
Bring next digit (3) of the dividend behind the 71 and repeat the process: 713 / 680

Let's proceed to step 5:
The number 680 fits into 713 1 times, leaving a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Subtracting 680 from 713 leaves us with 33.
Append the next digit (8) from the dividend to 33 and continue with: 338 / 680

On to step 6:
The number 680 fits into 338 0 times, leaving a remainder of 338.
Put 0 as the next digit of the answer. 
Result so far: 310.0
Subtracting 0 from 338 leaves us with 338.
Grab the next digit (3) from the dividend, add it to 338, then carry on: 3383 / 680

Moving on to step 7:
The number 680 fits into 3383 4 times, leaving a remainder of 663.
Put 4 as the next digit of the answer. 
Result so far: 3104.0
Subtract 2720 from 3383 to get 663.
Include the next digit (6) from the dividend after 663, then repeat: 6636 / 680

Going ahead to step 8:
When dividing 6636 by 680, we get 9 with a remainder of 516.
Put 9 as the next digit of the answer. 
Result so far: 31049.0
Deduct 6120 from 6636 and we're left with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Step 9:
When dividing 5160 by 680, we get 7 with a remainder of 400.
The next digit of our result is 7. 
Result so far: 31049.7
Subtracting 4760 from 5160 leaves us 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.

Moving on to step 10:
The number 680 fits into 4000 5 times, leaving a remainder of 600.
The next digit of our result is 5. 
Result so far: 31049.75
Subtracting 3400 from 4000 leaves us 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 11:
680 can be fit into 6000 8 times, resulting in a remainder of 560.
The number 8 becomes the next digit in our result. 
Result so far: 31049.758
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.

Going ahead to step 12:
The number 680 fits into 5600 8 times, leaving a remainder of 160.
The number 8 becomes the next digit in our result. 
Result so far: 31049.7588
Subtracting 5440 from 5600 leaves us 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.

After the division, we end up with 31049.7588 and a remainder of 0.0016.