Alright, let's work through 97664413 times 73977036 step by step
97664413 × 73977036 = 73977036 × (97664413)
+ 73977036 × 3 that is equal 221931108
+ 73977036 × 10 which equals 739770360
+ 73977036 × 400 that is equal 29590814400
+ 73977036 × 4000 what gives us 295908144000
+ 73977036 × 60000 that is equal 4438622160000
+ 73977036 × 600000 what gives us 44386221600000
+ 73977036 × 7000000 producing 517839252000000
+ 73977036 × 90000000 resulting in 6657933240000000

= 7224923796419868
