Alright, let's work through 63354312 times 13307497 step by step
63354312 × 13307497 = 13307497 × (63354312)
+ 13307497 × 2 that results in 26614994
+ 13307497 × 10 yielding 133074970
+ 13307497 × 300 giving us 3992249100
+ 13307497 × 4000 yielding 53229988000
+ 13307497 × 50000 what gives us 665374850000
+ 13307497 × 300000 producing 3992249100000
+ 13307497 × 3000000 that results in 39922491000000
+ 13307497 × 60000000 which equals 798449820000000

= 843087316877064
