Alright, let's work through 74085373 times 18665616 step by step
74085373 × 18665616 = 18665616 × (74085373)
+ 18665616 × 3 which equals 55996848
+ 18665616 × 70 resulting in 1306593120
+ 18665616 × 300 which equals 5599684800
+ 18665616 × 5000 which equals 93328080000
+ 18665616 × 80000 giving us 1493249280000
+ 18665616 × 000000 producing 0
+ 18665616 × 4000000 resulting in 74662464000000
+ 18665616 × 70000000 which equals 1306593120000000

= 1382849123634768
