We're dividing 21363289 by 85 
We want to divide 21363289 by 85.

Going ahead to step 1:
When dividing 2 by 85, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 85

Step 2:
If we divide 21 by 85, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (3) from the dividend, attach it to 21 and continue: 213 / 85

Step 3:
When dividing 213 by 85, we get 2 with a remainder of 43.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 43 after subtracting 170 from 213.
Fetch the next digit (6) from the dividend, attach it to 43 and continue: 436 / 85

Advancing to step 4:
The number 85 fits into 436 5 times, leaving a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Subtracting 425 from 436 leaves us with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 85

Advancing to step 5:
113 divided by 85 is 1 with a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 251.0
Subtract 85 from 113 to get 28.
Take the next digit (2) from the dividend and append it to 28, then repeat: 282 / 85

On to step 6:
282 divided by 85 is 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 2513.0
Deduct 255 from 282 and we're left with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 85

Let's proceed to step 7:
85 goes into 278 3 times with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 25133.0
Deduct 255 from 278 and we're left with 23.
Bring next digit (9) of the dividend behind the 23 and repeat the process: 239 / 85

Advancing to step 8:
If we divide 239 by 85, we get 2 and a remainder of 69.
The next digit of our result is 2. 
Result so far: 251332.0
Deduct 170 from 239 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 9:
690 divided by 85 is 8 with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 251332.8
Subtract 680 from 690 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.

Going ahead to step 10:
The number 85 fits into 100 1 times, leaving a remainder of 15.
The next digit of our result is 1. 
Result so far: 251332.81
The remainder is 15 after subtracting 85 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 11:
The number 85 fits into 150 1 times, leaving a remainder of 65.
The number 1 becomes the next digit in our result. 
Result so far: 251332.811
If we subtract 85 from 150, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The quotient of the division is 251332.811, and the remainder is 0.0065.