Alright, let's work through 47203827 times 78363242 step by step
47203827 × 78363242 = 78363242 × (47203827)
+ 78363242 × 7 that equals 548542694
+ 78363242 × 20 giving us 1567264840
+ 78363242 × 800 producing 62690593600
+ 78363242 × 3000 what gives us 235089726000
+ 78363242 × 00000 producing 0
+ 78363242 × 200000 resulting in 15672648400000
+ 78363242 × 7000000 what gives us 548542694000000
+ 78363242 × 40000000 giving us 3134529680000000

= 3699044918527134
