Alright, let's work through 97703178 times 83959856 step by step
97703178 × 83959856 = 83959856 × (97703178)
+ 83959856 × 8 resulting in 671678848
+ 83959856 × 70 resulting in 5877189920
+ 83959856 × 100 that results in 8395985600
+ 83959856 × 3000 yielding 251879568000
+ 83959856 × 00000 that equals 0
+ 83959856 × 700000 producing 58771899200000
+ 83959856 × 7000000 what gives us 587718992000000
+ 83959856 × 90000000 resulting in 7556387040000000

= 8203144755622368
