We look at the division of 21207570 by 983 
Our goal is to divide 21207570 by 983.

Moving on to step 1:
983 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 983

Advancing to step 2:
983 can be fit into 21 0 times, resulting in a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 983

On to step 3:
983 goes into 212 0 times with a remainder of 212.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 212, we end up with 212.
Append the next digit (0) from the dividend to 212 and continue with: 2120 / 983

Moving on to step 4:
983 goes into 2120 2 times with a remainder of 154.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1966 from 2120 and we're left with 154.
Grab the next digit (7) from the dividend, add it to 154, then carry on: 1547 / 983

On to step 5:
If we divide 1547 by 983, we get 1 and a remainder of 564.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
Deduct 983 from 1547 and we're left with 564.
Bring next digit (5) of the dividend behind the 564 and repeat the process: 5645 / 983

Let's proceed to step 6:
5645 divided by 983 is 5 with a remainder of 730.
Put 5 as the next digit of the answer. 
Result so far: 215.0
The remainder is 730 after subtracting 4915 from 5645.
Take the next digit (7) from the dividend and append it to 730, then repeat: 7307 / 983

Advancing to step 7:
7307 divided by 983 is 7 with a remainder of 426.
Write down 7 as next digit of the result. 
Result so far: 2157.0
Deduct 6881 from 7307 and we're left with 426.
Bring next digit (0) of the dividend behind the 426 and repeat the process: 4260 / 983

On to step 8:
983 goes into 4260 4 times with a remainder of 328.
Write down 4 as next digit of the result. 
Result so far: 21574.0
The remainder is 328 after subtracting 3932 from 4260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 9:
The number 983 fits into 3280 3 times, leaving a remainder of 331.
Put 3 as the next digit of the answer. 
Result so far: 21574.3
Deduct 2949 from 3280 and we're left with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Let's proceed to step 10:
When dividing 3310 by 983, we get 3 with a remainder of 361.
The next digit of our result is 3. 
Result so far: 21574.33
If we take 2949 away from 3310, we end up with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

The final result is 21574.33 with a remainder of 0.361.