We're dividing 21307675 by 128 
We want to divide 21307675 by 128.

Moving on to step 1:
If we divide 2 by 128, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 128

Let's proceed to step 2:
The number 128 fits into 21 0 times, leaving a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 128

On to step 3:
128 can be fit into 213 1 times, resulting in a remainder of 85.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 85 after subtracting 128 from 213.
Bring next digit (0) of the dividend behind the 85 and repeat the process: 850 / 128

Let's proceed to step 4:
128 goes into 850 6 times with a remainder of 82.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtracting 768 from 850 leaves us with 82.
Fetch the next digit (7) from the dividend, attach it to 82 and continue: 827 / 128

On to step 5:
When dividing 827 by 128, we get 6 with a remainder of 59.
Put 6 as the next digit of the answer. 
Result so far: 166.0
Subtract 768 from 827 to get 59.
Bring next digit (6) of the dividend behind the 59 and repeat the process: 596 / 128

Going ahead to step 6:
If we divide 596 by 128, we get 4 and a remainder of 84.
The number 4 becomes the next digit in our result. 
Result so far: 1664.0
If we subtract 512 from 596, we get 84.
Include the next digit (7) from the dividend after 84, then repeat: 847 / 128

Moving on to step 7:
847 divided by 128 is 6 with a remainder of 79.
Use 6 as the next digit of our solution. 
Result so far: 16646.0
Subtract 768 from 847 to get 79.
Include the next digit (5) from the dividend after 79, then repeat: 795 / 128

Step 8:
795 divided by 128 is 6 with a remainder of 27.
Write down 6 as next digit of the result. 
Result so far: 166466.0
If we subtract 768 from 795, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 9:
When dividing 270 by 128, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 166466.2
Subtract 256 from 270 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 10:
128 can be fit into 140 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 166466.21
Deduct 128 from 140 and we're left 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.

Step 11:
128 can be fit into 120 0 times, resulting in a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 166466.21
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 12:
The number 128 fits into 1200 9 times, leaving a remainder of 48.
The next digit of our result is 9. 
Result so far: 166466.2109
Subtracting 1152 from 1200 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 13:
480 divided by 128 is 3 with a remainder of 96.
Put 3 as the next digit of the answer. 
Result so far: 166466.21093
If we take 384 away from 480, we end up 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.

Moving on to step 14:
128 can be fit into 960 7 times, resulting in a remainder of 64.
The next digit of our result is 7. 
Result so far: 166466.210937
If we subtract 896 from 960, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 15:
128 can be fit into 640 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 166466.2109375
If we subtract 640 from 640, 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.

Advancing to step 16:
The number 128 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 166466.2109375
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.

After the division, we end up with 166466.2109375 and a remainder of 0.0.