688947 ÷ 21 
We want to divide 688947 by 21.

Going ahead to step 1:
21 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 21

Let's proceed to step 2:
21 goes into 68 3 times with a remainder of 5.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 63 from 68, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 21

Let's proceed to step 3:
21 can be fit into 58 2 times, resulting in a remainder of 16.
The next digit of our result is 2. 
Result so far: 32.0
Deduct 42 from 58 and we're left with 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 21

Advancing to step 4:
21 can be fit into 169 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 328.0
Subtract 168 from 169 to get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 21

Moving on to step 5:
When dividing 14 by 21, we get 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 3280.0
If we subtract 0 from 14, we get 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 21

Advancing to step 6:
The number 21 fits into 147 7 times, leaving a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 32807.0
Subtracting 147 from 147 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 7:
0 divided by 21 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 32807.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 21, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 32807.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 32807.0 with a balance of 0.0.