Alright, let's work through 7137283 times 50109479 step by step
7137283 × 50109479 = 50109479 × (7137283)
+ 50109479 × 3 what gives us 150328437
+ 50109479 × 80 resulting in 4008758320
+ 50109479 × 200 resulting in 10021895800
+ 50109479 × 7000 resulting in 350766353000
+ 50109479 × 30000 what gives us 1503284370000
+ 50109479 × 100000 that results in 5010947900000
+ 50109479 × 7000000 that equals 350766353000000

= 357645532605557
