Alright, let's work through 66231487 times 90212902 step by step
66231487 × 90212902 = 90212902 × (66231487)
+ 90212902 × 7 that results in 631490314
+ 90212902 × 80 resulting in 7217032160
+ 90212902 × 400 giving us 36085160800
+ 90212902 × 1000 giving us 90212902000
+ 90212902 × 30000 that results in 2706387060000
+ 90212902 × 200000 that is equal 18042580400000
+ 90212902 × 6000000 resulting in 541277412000000
+ 90212902 × 60000000 that equals 5412774120000000

= 5974934646045274
