Alright, let's work through 52368994 times 28691489 step by step
52368994 × 28691489 = 28691489 × (52368994)
+ 28691489 × 4 what gives us 114765956
+ 28691489 × 90 producing 2582234010
+ 28691489 × 900 which equals 25822340100
+ 28691489 × 8000 what gives us 229531912000
+ 28691489 × 60000 which equals 1721489340000
+ 28691489 × 300000 giving us 8607446700000
+ 28691489 × 2000000 giving us 57382978000000
+ 28691489 × 50000000 giving us 1434574450000000

= 1502544415292066
