We're dividing 885311 by 21 
We're looking to find how many times 21 goes into 885311.

Moving on to step 1:
When dividing 8 by 21, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 21

On to step 2:
When dividing 88 by 21, we get 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 84 from 88 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 21

On to step 3:
If we divide 45 by 21, we get 2 and a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
If we take 42 away from 45, we end up with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 21

Going ahead to step 4:
33 divided by 21 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 421.0
Subtract 21 from 33 to get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 21

Going ahead to step 5:
121 divided by 21 is 5 with a remainder of 16.
The next digit of our result is 5. 
Result so far: 4215.0
The remainder is 16 after subtracting 105 from 121.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 21

Going ahead to step 6:
When dividing 161 by 21, we get 7 with a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 42157.0
If we subtract 147 from 161, we 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.

Step 7:
21 goes into 140 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 42157.6
If we take 126 away from 140, we end up with 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 8:
When dividing 140 by 21, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 42157.66
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 42157.66, and the remainder is 0.014.