We're dividing 662745 by 21 
We're looking to find how many times 21 goes into 662745.

Step 1:
6 divided by 21 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 21

Moving on to step 2:
If we divide 66 by 21, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 3 after subtracting 63 from 66.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 21

Let's proceed to step 3:
The number 21 fits into 32 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 31.0
The remainder is 11 after subtracting 21 from 32.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 21

Step 4:
117 divided by 21 is 5 with a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 315.0
Subtract 105 from 117 to get 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 21

Step 5:
If we divide 124 by 21, we get 5 and a remainder of 19.
Record the quotient 5 as the next digit in the result. 
Result so far: 3155.0
If we take 105 away from 124, we end up with 19.
Include the next digit (5) from the dividend after 19, then repeat: 195 / 21

Advancing to step 6:
21 can be fit into 195 9 times, resulting in a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 31559.0
Subtracting 189 from 195 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:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 31559.2
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.

Moving on to step 8:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 31559.28
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.

Moving on to step 9:
The number 21 fits into 120 5 times, leaving a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 31559.285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 10:
21 can be fit into 150 7 times, resulting in a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 31559.2857
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.

Advancing to step 11:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 31559.28571
If we take 21 away from 30, we end up 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.

Going ahead to step 12:
The number 21 fits into 90 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 31559.285714
Subtract 84 from 90 to 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.

Step 13:
60 divided by 21 is 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 31559.2857142
If we subtract 42 from 60, we 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 14:
180 divided by 21 is 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 31559.28571428
If we take 168 away from 180, we end up 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.

Our division results in 31559.28571428 with a remaining 1.2e-08.