675364 ÷ 21 
Our goal is to divide 675364 by 21.

Step 1:
21 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 21

Step 2:
When dividing 67 by 21, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 63 from 67, we get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 21

On to step 3:
21 goes into 45 2 times with a remainder of 3.
The next digit of our result is 2. 
Result so far: 32.0
Deduct 42 from 45 and we're left with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 21

Step 4:
If we divide 33 by 21, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 321.0
If we subtract 21 from 33, we get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 21

Advancing to step 5:
21 can be fit into 126 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 3216.0
The remainder is 0 after subtracting 126 from 126.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 21

Step 6:
21 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 32160.0
The remainder is 4 after subtracting 0 from 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
40 divided by 21 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 32160.1
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 8:
21 goes into 190 9 times with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 32160.19
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
When dividing 10 by 21, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 32160.19
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 21 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 32160.1904
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
When dividing 160 by 21, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 32160.19047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 12:
When dividing 130 by 21, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 32160.190476
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
If we divide 40 by 21, we get 1 and a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 32160.1904761
If we take 21 away from 40, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 14:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 32160.19047619
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 32160.19047619 with a remainder of 1e-09.