We look at the division of 10675 by 21 
Let's see how many times 21 fits into 10675.

Going ahead to step 1:
1 divided by 21 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 21

Step 2:
21 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 10 leaves us with 10.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 21

Advancing to step 3:
The number 21 fits into 106 5 times, leaving a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 105 from 106 leaves us with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 21

Step 4:
When dividing 17 by 21, we get 0 with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 21

Let's proceed to step 5:
If we divide 175 by 21, we get 8 and a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 508.0
Subtract 168 from 175 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 6:
21 goes into 70 3 times with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 508.3
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
21 goes into 70 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 508.33
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 508.33 with a remaining 0.007.