21339853 divided by 104 
We're looking to find how many times 104 goes into 21339853.

On to step 1:
If we divide 2 by 104, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 104

Advancing to step 2:
104 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 subtract 0 from 21, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 104

Step 3:
213 divided by 104 is 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 208 from 213, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 104

Moving on to step 4:
53 divided by 104 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 53, we get 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 104

Moving on to step 5:
104 can be fit into 539 5 times, resulting in a remainder of 19.
Record the quotient 5 as the next digit in the result. 
Result so far: 205.0
The remainder is 19 after subtracting 520 from 539.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 104

Let's proceed to step 6:
When dividing 198 by 104, we get 1 with a remainder of 94.
Use 1 as the next digit of our solution. 
Result so far: 2051.0
If we subtract 104 from 198, we get 94.
Take the next digit (5) from the dividend and append it to 94, then repeat: 945 / 104

Advancing to step 7:
If we divide 945 by 104, we get 9 and a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 20519.0
Subtract 936 from 945 to get 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 104

On to step 8:
When dividing 93 by 104, we get 0 with a remainder of 93.
The number 0 becomes the next digit in our result. 
Result so far: 205190.0
The remainder is 93 after subtracting 0 from 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

On to step 9:
930 divided by 104 is 8 with a remainder of 98.
Put 8 as the next digit of the answer. 
Result so far: 205190.8
The remainder is 98 after subtracting 832 from 930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 10:
If we divide 980 by 104, we get 9 and a remainder of 44.
The next digit of our result is 9. 
Result so far: 205190.89
If we subtract 936 from 980, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 11:
The number 104 fits into 440 4 times, leaving a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 205190.894
Deduct 416 from 440 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 12:
When dividing 240 by 104, we get 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 205190.8942
Subtract 208 from 240 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
The number 104 fits into 320 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 205190.89423
The remainder is 8 after subtracting 312 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 14:
If we divide 80 by 104, we get 0 and a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 205190.89423
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 15:
104 can be fit into 800 7 times, resulting in a remainder of 72.
The next digit of our result is 7. 
Result so far: 205190.8942307
Deduct 728 from 800 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 16:
104 can be fit into 720 6 times, resulting in a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 205190.89423076
Subtracting 624 from 720 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final outcome is 205190.89423076, with a leftover of 9.6e-08.