Let's divide 703439 by 21
We want to divide 703439 by 21.

Moving on to step 1:
If we divide 7 by 21, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 21

Moving on to step 2:
If we divide 70 by 21, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 63 from 70, we get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 21

Step 3:
21 goes into 73 3 times with a remainder of 10.
The next digit of our result is 3. 
Result so far: 33.0
Subtracting 63 from 73 leaves us with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 21

Advancing to step 4:
If we divide 104 by 21, we get 4 and a remainder of 20.
The next digit of our result is 4. 
Result so far: 334.0
The remainder is 20 after subtracting 84 from 104.
Fetch the next digit (3) from the dividend, attach it to 20 and continue: 203 / 21

Let's proceed to step 5:
21 goes into 203 9 times with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 3349.0
If we take 189 away from 203, we end up with 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 21

Advancing to step 6:
The number 21 fits into 149 7 times, leaving a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 33497.0
If we take 147 away from 149, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
21 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 33497.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
200 divided by 21 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 33497.09
Deduct 189 from 200 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 9:
When dividing 110 by 21, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 33497.095
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
When dividing 50 by 21, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 33497.0952
If we take 42 away from 50, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
When dividing 80 by 21, we get 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 33497.09523
If we take 63 away from 80, we end up 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.

Let's proceed to step 12:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 33497.095238
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 13:
The number 21 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 33497.095238
If we take 0 away from 20, we end up 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.

Advancing to step 14:
When dividing 200 by 21, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 33497.09523809
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.

In conclusion, the division gives 33497.09523809 with a balance of 1.1e-08.