Random numbers in a long range, is that right- Random number in long range, is this the way?

problem ：

Can somebody verify this method. Someone can verify this method .I need a long type number inside a range of two longs. I need to be in two long Within the scope of long Type number .I use the .NET Random.Next(min, max) function which return int's. I use return int Of .NET Random.Next(min, max) function .Is my reasoning correct if I simply divide the long by 2, generate the random number and finally multiply it by 2 again? If I simply long Divide 2, Generate random number , Finally, multiply by 2, Is my reasoning correct ？Or am I too enthusiastic... I understand that my random resolution will decrease but are there any other mistakes which will lead to no such a random number. Or am I too enthusiastic …… I know my random resolution will decrease , But is there any other error that will lead to the absence of such random numbers .

long min = st.MinimumTime.Ticks;    //long is Signed 64-bit integerlong max = st.MaximumTime.Ticks;int minInt = (int) (min / 2);      //int is Signed 64-bit integerint maxInt = (int) (max / 2);      //int is Signed 64-bit integerRandom random = new Random();int randomInt = random.Next(minInt, maxInt);long randomLong = (randomInt * 2);

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Solution ：

Reference resources ： https://stackoom.com/en/question/RuN8