21857 divided by 49 
We're looking to find how many times 49 goes into 21857.

Let's proceed to step 1:
The number 49 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 49

Step 2:
49 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 49

Moving on to step 3:
If we divide 218 by 49, we get 4 and a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 196 from 218 and we're left with 22.
Fetch the next digit (5) from the dividend, attach it to 22 and continue: 225 / 49

Step 4:
If we divide 225 by 49, we get 4 and a remainder of 29.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
If we take 196 away from 225, we end up with 29.
Grab the next digit (7) from the dividend, add it to 29, then carry on: 297 / 49

On to step 5:
49 goes into 297 6 times with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 446.0
The remainder is 3 after subtracting 294 from 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 6:
If we divide 30 by 49, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 446.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 7:
When dividing 300 by 49, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 446.06
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
The number 49 fits into 60 1 times, leaving a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 446.061
Subtracting 49 from 60 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
The number 49 fits into 110 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 446.0612
Subtracting 98 from 110 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
If we divide 120 by 49, we get 2 and a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 446.06122
If we take 98 away from 120, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 446.06122, with a leftover of 2.2e-05.