We look at the division of 9813900 by 771 
Let's see how many times 771 fits into 9813900.

Step 1:
If we divide 9 by 771, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 771

Moving on to step 2:
When dividing 98 by 771, we get 0 with a remainder of 98.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 98, we get 98.
Include the next digit (1) from the dividend after 98, then repeat: 981 / 771

Moving on to step 3:
771 goes into 981 1 times with a remainder of 210.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 771 from 981 to get 210.
Append the next digit (3) from the dividend to 210 and continue with: 2103 / 771

On to step 4:
The number 771 fits into 2103 2 times, leaving a remainder of 561.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 1542 from 2103 and we're left with 561.
Take the next digit (9) from the dividend and append it to 561, then repeat: 5619 / 771

Let's proceed to step 5:
When dividing 5619 by 771, we get 7 with a remainder of 222.
Write down 7 as next digit of the result. 
Result so far: 127.0
If we take 5397 away from 5619, we end up with 222.
Include the next digit (0) from the dividend after 222, then repeat: 2220 / 771

Moving on to step 6:
When dividing 2220 by 771, we get 2 with a remainder of 678.
The number 2 becomes the next digit in our result. 
Result so far: 1272.0
If we subtract 1542 from 2220, we get 678.
Bring next digit (0) of the dividend behind the 678 and repeat the process: 6780 / 771

Moving on to step 7:
771 can be fit into 6780 8 times, resulting in a remainder of 612.
The number 8 becomes the next digit in our result. 
Result so far: 12728.0
Deduct 6168 from 6780 and we're left with 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Advancing to step 8:
If we divide 6120 by 771, we get 7 and a remainder of 723.
The next digit of our result is 7. 
Result so far: 12728.7
Subtract 5397 from 6120 to get 723.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7230, and continue the process.

Let's proceed to step 9:
The number 771 fits into 7230 9 times, leaving a remainder of 291.
The number 9 becomes the next digit in our result. 
Result so far: 12728.79
The remainder is 291 after subtracting 6939 from 7230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Moving on to step 10:
If we divide 2910 by 771, we get 3 and a remainder of 597.
Use 3 as the next digit of our solution. 
Result so far: 12728.793
If we take 2313 away from 2910, we end up with 597.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5970, and continue the process.

Step 11:
771 can be fit into 5970 7 times, resulting in a remainder of 573.
Record the quotient 7 as the next digit in the result. 
Result so far: 12728.7937
The remainder is 573 after subtracting 5397 from 5970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Let's proceed to step 12:
The number 771 fits into 5730 7 times, leaving a remainder of 333.
Use 7 as the next digit of our solution. 
Result so far: 12728.79377
If we subtract 5397 from 5730, we get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

After the division, we end up with 12728.79377 and a remainder of 0.000333.