Alright, let's work through 19742437 times 72797336 step by step
19742437 × 72797336 = 72797336 × (19742437)
+ 72797336 × 7 what gives us 509581352
+ 72797336 × 30 what gives us 2183920080
+ 72797336 × 400 producing 29118934400
+ 72797336 × 2000 which equals 145594672000
+ 72797336 × 40000 which equals 2911893440000
+ 72797336 × 700000 that results in 50958135200000
+ 72797336 × 9000000 producing 655176024000000
+ 72797336 × 10000000 giving us 727973360000000

= 1437196819747832
