The code writes the value 4275451536.0 as double-precision floating point into the address [ebp-410]. The representation of 4275451536.0 as IEEE-754 double-precision floating point is 41EFDAC6D2000000 (you can do the conversion here). Since you only looked at the lower 4 bytes, you saw D2000000, but you should look at the whole 8 bytes to see the entire value.
If you want to know how the value 41EFDAC6D2000000 was reached, read about double precision floating point format. The tool I linked above will give you the values for the significand and exponent.