19721012 divided by 902 
Our goal is to divide 19721012 by 902.

Going ahead to step 1:
902 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 902

Step 2:
The number 902 fits into 19 0 times, leaving a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Include the next digit (7) from the dividend after 19, then repeat: 197 / 902

Step 3:
902 can be fit into 197 0 times, resulting in a remainder of 197.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 197 and we're left with 197.
Fetch the next digit (2) from the dividend, attach it to 197 and continue: 1972 / 902

On to step 4:
When dividing 1972 by 902, we get 2 with a remainder of 168.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1804 away from 1972, we end up with 168.
Fetch the next digit (1) from the dividend, attach it to 168 and continue: 1681 / 902

Let's proceed to step 5:
902 goes into 1681 1 times with a remainder of 779.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 902 away from 1681, we end up with 779.
Append the next digit (0) from the dividend to 779 and continue with: 7790 / 902

Going ahead to step 6:
If we divide 7790 by 902, we get 8 and a remainder of 574.
Record the quotient 8 as the next digit in the result. 
Result so far: 218.0
Subtracting 7216 from 7790 leaves us with 574.
Fetch the next digit (1) from the dividend, attach it to 574 and continue: 5741 / 902

On to step 7:
902 can be fit into 5741 6 times, resulting in a remainder of 329.
Put 6 as the next digit of the answer. 
Result so far: 2186.0
If we subtract 5412 from 5741, we get 329.
Bring next digit (2) of the dividend behind the 329 and repeat the process: 3292 / 902

On to step 8:
If we divide 3292 by 902, we get 3 and a remainder of 586.
Write down 3 as next digit of the result. 
Result so far: 21863.0
Deduct 2706 from 3292 and we're left with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Advancing to step 9:
If we divide 5860 by 902, we get 6 and a remainder of 448.
Record the quotient 6 as the next digit in the result. 
Result so far: 21863.6
Subtracting 5412 from 5860 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 10:
4480 divided by 902 is 4 with a remainder of 872.
The number 4 becomes the next digit in our result. 
Result so far: 21863.64
The remainder is 872 after subtracting 3608 from 4480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8720, and continue the process.

Going ahead to step 11:
902 goes into 8720 9 times with a remainder of 602.
Record the quotient 9 as the next digit in the result. 
Result so far: 21863.649
The remainder is 602 after subtracting 8118 from 8720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Step 12:
When dividing 6020 by 902, we get 6 with a remainder of 608.
The next digit of our result is 6. 
Result so far: 21863.6496
If we subtract 5412 from 6020, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

On to step 13:
902 can be fit into 6080 6 times, resulting in a remainder of 668.
The number 6 becomes the next digit in our result. 
Result so far: 21863.64966
Subtract 5412 from 6080 to get 668.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

The final result is 21863.64966 with a remainder of 0.000668.