Alright, let's work through 71998098 times 80668798 step by step
71998098 × 80668798 = 80668798 × (71998098)
+ 80668798 × 8 that equals 645350384
+ 80668798 × 90 that is equal 7260191820
+ 80668798 × 000 producing 0
+ 80668798 × 8000 that equals 645350384000
+ 80668798 × 90000 yielding 7260191820000
+ 80668798 × 900000 producing 72601918200000
+ 80668798 × 1000000 resulting in 80668798000000
+ 80668798 × 70000000 that equals 5646815860000000

= 5808000023946204
