We're dividing 21496447 by 20 
We want to divide 21496447 by 20.

Advancing to step 1:
The number 20 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 20

Advancing to step 2:
20 goes into 21 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 20 away from 21, we end up with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 20

Moving on to step 3:
14 divided by 20 is 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 14, we get 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 20

Going ahead to step 4:
149 divided by 20 is 7 with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 107.0
The remainder is 9 after subtracting 140 from 149.
Append the next digit (6) from the dividend to 9 and continue with: 96 / 20

Moving on to step 5:
The number 20 fits into 96 4 times, leaving a remainder of 16.
The next digit of our result is 4. 
Result so far: 1074.0
Deduct 80 from 96 and we're left with 16.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 20

Going ahead to step 6:
If we divide 164 by 20, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 10748.0
If we take 160 away from 164, we end up with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 20

Advancing to step 7:
When dividing 44 by 20, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 107482.0
If we take 40 away from 44, we end up with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 20

Going ahead to step 8:
When dividing 47 by 20, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 1074822.0
Subtract 40 from 47 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
If we divide 70 by 20, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 1074822.3
Deduct 60 from 70 and we're left 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.

Let's proceed to step 10:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 1074822.35
If we subtract 100 from 100, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1074822.35
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1074822.35
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 1074822.35 and a remainder of 0.0.