Alright, let's work through 99018639 times 60138825 step by step
99018639 × 60138825 = 60138825 × (99018639)
+ 60138825 × 9 producing 541249425
+ 60138825 × 30 that results in 1804164750
+ 60138825 × 600 what gives us 36083295000
+ 60138825 × 8000 producing 481110600000
+ 60138825 × 10000 what gives us 601388250000
+ 60138825 × 000000 producing 0
+ 60138825 × 9000000 giving us 541249425000000
+ 60138825 × 90000000 yielding 5412494250000000

= 5954864602559175
