Let's divide 665883 by 21
We want to divide 665883 by 21.

Advancing to step 1:
21 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 21

Moving on to step 2:
21 can be fit into 66 3 times, resulting in a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 3 after subtracting 63 from 66.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 21

Let's proceed to step 3:
When dividing 35 by 21, we get 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Deduct 21 from 35 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:
21 goes into 148 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 317.0
Deduct 147 from 148 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 21

Moving on to step 5:
If we divide 18 by 21, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 3170.0
The remainder is 18 after subtracting 0 from 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 21

On to step 6:
21 goes into 183 8 times with a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 31708.0
Subtracting 168 from 183 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.

Going ahead to step 7:
If we divide 150 by 21, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 31708.7
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.

Let's proceed to step 8:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 31708.71
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 31708.714
If we take 84 away from 90, we end up 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.

Moving on to step 10:
If we divide 60 by 21, we get 2 and a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 31708.7142
Subtract 42 from 60 to get 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 11:
When dividing 180 by 21, we get 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 31708.71428
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.

Step 12:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 31708.714285
If we take 105 away from 120, we end up 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.

Advancing to step 13:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 31708.7142857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 14:
21 goes into 30 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 31708.71428571
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.

After the division, we end up with 31708.71428571 and a remainder of 9e-09.