21394077 ÷ 128 
Our goal is to divide 21394077 by 128.

Advancing to step 1:
2 divided by 128 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 128

Moving on to step 2:
The number 128 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 128

Step 3:
128 can be fit into 213 1 times, resulting in a remainder of 85.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 128 from 213 leaves us with 85.
Take the next digit (9) from the dividend and append it to 85, then repeat: 859 / 128

On to step 4:
The number 128 fits into 859 6 times, leaving a remainder of 91.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 768 from 859 to get 91.
Take the next digit (4) from the dividend and append it to 91, then repeat: 914 / 128

On to step 5:
128 goes into 914 7 times with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 167.0
The remainder is 18 after subtracting 896 from 914.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 128

Going ahead to step 6:
128 can be fit into 180 1 times, resulting in a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 1671.0
Deduct 128 from 180 and we're left with 52.
Fetch the next digit (7) from the dividend, attach it to 52 and continue: 527 / 128

Going ahead to step 7:
527 divided by 128 is 4 with a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 16714.0
Subtracting 512 from 527 leaves us with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 128

Going ahead to step 8:
The number 128 fits into 157 1 times, leaving a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 167141.0
Subtract 128 from 157 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
290 divided by 128 is 2 with a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 167141.2
Deduct 256 from 290 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
340 divided by 128 is 2 with a remainder of 84.
Use 2 as the next digit of our solution. 
Result so far: 167141.22
The remainder is 84 after subtracting 256 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

The final result is 167141.22 with a remainder of 0.084.