what is 222222222222+222222222222/8*99999 to the third power

222222222222/8, first of all, is 27777777777.75, and 27777777777.75+222222222222=24999999999999.75

 

Now, to multiply 99999*99999*99999 is a fantasmically large number, though working it out is 999970000299999. 999970000299999*24999999999999.75 is 24999250007499725007499925000.25

 

It would help if somebody could check this for ,e working with such large numbers I may have misconuted.