Alright, let's work through 54799515 times 90172902 step by step
54799515 × 90172902 = 90172902 × (54799515)
+ 90172902 × 5 producing 450864510
+ 90172902 × 10 producing 901729020
+ 90172902 × 500 giving us 45086451000
+ 90172902 × 9000 what gives us 811556118000
+ 90172902 × 90000 that equals 8115561180000
+ 90172902 × 700000 producing 63121031400000
+ 90172902 × 4000000 what gives us 360691608000000
+ 90172902 × 50000000 yielding 4508645100000000

= 4941431295742530
