We're dividing 26494294 by 21 
Our goal is to divide 26494294 by 21.

Going ahead to step 1:
The number 21 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 21

Advancing to step 2:
The number 21 fits into 26 1 times, leaving a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 21 from 26 and we're left with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 21

On to step 3:
54 divided by 21 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 42 from 54 and we're left with 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 21

Step 4:
The number 21 fits into 129 6 times, leaving a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
Subtracting 126 from 129 leaves us with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 21

Going ahead to step 5:
34 divided by 21 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1261.0
If we subtract 21 from 34, we get 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 21

On to step 6:
The number 21 fits into 132 6 times, leaving a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 12616.0
Subtract 126 from 132 to get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 21

Let's proceed to step 7:
The number 21 fits into 69 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 126163.0
If we subtract 63 from 69, we get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 21

Going ahead to step 8:
21 goes into 64 3 times with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 1261633.0
Subtract 63 from 64 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
When dividing 10 by 21, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1261633.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 1261633.04
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
160 divided by 21 is 7 with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 1261633.047
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 12:
When dividing 130 by 21, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1261633.0476
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 13:
40 divided by 21 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1261633.04761
If we subtract 21 from 40, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 14:
If we divide 190 by 21, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 1261633.047619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 15:
21 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 1261633.047619
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 16:
If we divide 100 by 21, we get 4 and a remainder of 16.
The next digit of our result is 4. 
Result so far: 1261633.04761904
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 1261633.04761904 and a remainder of 1.6e-08.