We're dividing 21208570 by 30 
Let's see how many times 30 fits into 21208570.

Moving on to step 1:
The number 30 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 30

Step 2:
30 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 30

Step 3:
When dividing 212 by 30, we get 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 210 away from 212, we end up with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 30

Step 4:
20 divided by 30 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
If we take 0 away from 20, we end up with 20.
Fetch the next digit (8) from the dividend, attach it to 20 and continue: 208 / 30

Advancing to step 5:
When dividing 208 by 30, we get 6 with a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 706.0
Subtract 180 from 208 to get 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 30

Moving on to step 6:
30 goes into 285 9 times with a remainder of 15.
The next digit of our result is 9. 
Result so far: 7069.0
Deduct 270 from 285 and we're left with 15.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 30

Advancing to step 7:
If we divide 157 by 30, we get 5 and a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 70695.0
The remainder is 7 after subtracting 150 from 157.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 30

Going ahead to step 8:
When dividing 70 by 30, we get 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 706952.0
Subtract 60 from 70 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
When dividing 100 by 30, we get 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 706952.3
If we subtract 90 from 100, we get 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 10:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 706952.33
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 706952.33 with a balance of 0.01.