We're dividing 30230399 by 771 
We want to figure out the number of times 30230399 can be divided by 771.

Step 1:
771 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 771

Let's proceed to step 2:
771 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 771

Moving on to step 3:
771 goes into 302 0 times with a remainder of 302.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 302 and we're left with 302.
Append the next digit (3) from the dividend to 302 and continue with: 3023 / 771

Let's proceed to step 4:
If we divide 3023 by 771, we get 3 and a remainder of 710.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 2313 from 3023 leaves us with 710.
Take the next digit (0) from the dividend and append it to 710, then repeat: 7100 / 771

Let's proceed to step 5:
771 can be fit into 7100 9 times, resulting in a remainder of 161.
Put 9 as the next digit of the answer. 
Result so far: 39.0
The remainder is 161 after subtracting 6939 from 7100.
Bring next digit (3) of the dividend behind the 161 and repeat the process: 1613 / 771

Going ahead to step 6:
If we divide 1613 by 771, we get 2 and a remainder of 71.
Use 2 as the next digit of our solution. 
Result so far: 392.0
The remainder is 71 after subtracting 1542 from 1613.
Include the next digit (9) from the dividend after 71, then repeat: 719 / 771

Let's proceed to step 7:
719 divided by 771 is 0 with a remainder of 719.
Record the quotient 0 as the next digit in the result. 
Result so far: 3920.0
Subtract 0 from 719 to get 719.
Bring next digit (9) of the dividend behind the 719 and repeat the process: 7199 / 771

Going ahead to step 8:
If we divide 7199 by 771, we get 9 and a remainder of 260.
Use 9 as the next digit of our solution. 
Result so far: 39209.0
If we subtract 6939 from 7199, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 9:
The number 771 fits into 2600 3 times, leaving a remainder of 287.
Use 3 as the next digit of our solution. 
Result so far: 39209.3
If we subtract 2313 from 2600, we get 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Going ahead to step 10:
2870 divided by 771 is 3 with a remainder of 557.
Use 3 as the next digit of our solution. 
Result so far: 39209.33
If we subtract 2313 from 2870, we get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

The quotient of the division is 39209.33, and the remainder is 0.557.