We divide 679172 by 21
Let's see how many times 21 fits into 679172.

Going ahead to step 1:
The number 21 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 21

Moving on to step 2:
The number 21 fits into 67 3 times, leaving 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 (9) from the dividend, attach it to 4 and continue: 49 / 21

On to step 3:
The number 21 fits into 49 2 times, leaving a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Deduct 42 from 49 and we're left with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 21

Moving on to step 4:
21 can be fit into 71 3 times, resulting in a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 323.0
Subtract 63 from 71 to get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 21

Going ahead to step 5:
21 can be fit into 87 4 times, resulting in a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 3234.0
Subtracting 84 from 87 leaves us with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 21

Step 6:
32 divided by 21 is 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 32341.0
The remainder is 11 after subtracting 21 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
21 can be fit into 110 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 32341.5
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
50 divided by 21 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 32341.52
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
If we divide 80 by 21, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 32341.523
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 10:
The number 21 fits into 170 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 32341.5238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 11:
20 divided by 21 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 32341.5238
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
200 divided by 21 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 32341.523809
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 13:
The number 21 fits into 110 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 32341.5238095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
21 can be fit into 50 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 32341.52380952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 32341.52380952 and a remainder of 8e-09.