Let's divide 21775012 by 391
We want to figure out the number of times 21775012 can be divided by 391.

Going ahead to step 1:
If we divide 2 by 391, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 391

Advancing to step 2:
391 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
The remainder is 21 after subtracting 0 from 21.
Include the next digit (7) from the dividend after 21, then repeat: 217 / 391

Step 3:
391 goes into 217 0 times with a remainder of 217.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 217, we get 217.
Include the next digit (7) from the dividend after 217, then repeat: 2177 / 391

Let's proceed to step 4:
If we divide 2177 by 391, we get 5 and a remainder of 222.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 1955 from 2177 leaves us with 222.
Grab the next digit (5) from the dividend, add it to 222, then carry on: 2225 / 391

On to step 5:
391 goes into 2225 5 times with a remainder of 270.
Use 5 as the next digit of our solution. 
Result so far: 55.0
Subtracting 1955 from 2225 leaves us with 270.
Bring next digit (0) of the dividend behind the 270 and repeat the process: 2700 / 391

Let's proceed to step 6:
391 goes into 2700 6 times with a remainder of 354.
Put 6 as the next digit of the answer. 
Result so far: 556.0
Subtracting 2346 from 2700 leaves us with 354.
Append the next digit (1) from the dividend to 354 and continue with: 3541 / 391

Going ahead to step 7:
391 goes into 3541 9 times with a remainder of 22.
The next digit of our result is 9. 
Result so far: 5569.0
Subtract 3519 from 3541 to get 22.
Grab the next digit (2) from the dividend, add it to 22, then carry on: 222 / 391

Going ahead to step 8:
391 can be fit into 222 0 times, resulting in a remainder of 222.
The number 0 becomes the next digit in our result. 
Result so far: 55690.0
If we take 0 away from 222, we end up with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Going ahead to step 9:
391 goes into 2220 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 55690.5
If we subtract 1955 from 2220, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Moving on to step 10:
391 goes into 2650 6 times with a remainder of 304.
The next digit of our result is 6. 
Result so far: 55690.56
If we subtract 2346 from 2650, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 11:
391 can be fit into 3040 7 times, resulting in a remainder of 303.
Put 7 as the next digit of the answer. 
Result so far: 55690.567
If we take 2737 away from 3040, we end up with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Moving on to step 12:
391 can be fit into 3030 7 times, resulting in a remainder of 293.
Write down 7 as next digit of the result. 
Result so far: 55690.5677
Subtract 2737 from 3030 to get 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

The final result is 55690.5677 with a remainder of 0.00293.