Let's divide 669829 by 21
Our goal is to divide 669829 by 21.

Going ahead to step 1:
When dividing 6 by 21, we get 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.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 21

Advancing to step 2:
When dividing 66 by 21, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 63 from 66 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 21

Step 3:
21 goes into 39 1 times with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 31.0
If we take 21 away from 39, we end up with 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 21

On to step 4:
188 divided by 21 is 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 318.0
If we take 168 away from 188, we end up with 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 21

Step 5:
21 goes into 202 9 times with a remainder of 13.
The next digit of our result is 9. 
Result so far: 3189.0
If we subtract 189 from 202, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 21

Advancing to step 6:
139 divided by 21 is 6 with a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 31896.0
Deduct 126 from 139 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
21 can be fit into 130 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 31896.6
Deduct 126 from 130 and we're left 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.

Step 8:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 31896.61
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
When dividing 190 by 21, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 31896.619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 10:
21 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 31896.619
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.

Moving on to step 11:
When dividing 100 by 21, we get 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 31896.61904
Deduct 84 from 100 and we're left 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 12:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 31896.619047
If we take 147 away from 160, we end up with 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 13:
21 goes into 130 6 times with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 31896.6190476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
The number 21 fits into 40 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 31896.61904761
If we subtract 21 from 40, we 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.

The quotient of the division is 31896.61904761, and the remainder is 1.9e-08.