Let's divide 602811 by 21
Our goal is to divide 602811 by 21.

Going ahead to step 1:
The number 21 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 21

Advancing to step 2:
21 goes into 60 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 42 away from 60, we end up with 18.
Fetch the next digit (2) from the dividend, attach it to 18 and continue: 182 / 21

Step 3:
21 goes into 182 8 times with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Deduct 168 from 182 and we're left with 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 21

Let's proceed to step 4:
148 divided by 21 is 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 287.0
If we subtract 147 from 148, we get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 21

Advancing to step 5:
11 divided by 21 is 0 with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 2870.0
The remainder is 11 after subtracting 0 from 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 21

Going ahead to step 6:
If we divide 111 by 21, we get 5 and a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 28705.0
Subtracting 105 from 111 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
If we divide 60 by 21, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 28705.2
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
If we divide 180 by 21, we get 8 and a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 28705.28
Subtracting 168 from 180 leaves us 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.

On to step 9:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 28705.285
Subtracting 105 from 120 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 10:
21 can be fit into 150 7 times, resulting in a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 28705.2857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 11:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 28705.28571
Deduct 21 from 30 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 12:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 28705.285714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
60 divided by 21 is 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 28705.2857142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 14:
21 can be fit into 180 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 28705.28571428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 28705.28571428 with a remainder of 1.2e-08.