Alright, let's work through 72080077 times 98231713 step by step
72080077 × 98231713 = 98231713 × (72080077)
+ 98231713 × 7 that equals 687621991
+ 98231713 × 70 that results in 6876219910
+ 98231713 × 000 resulting in 0
+ 98231713 × 0000 that equals 0
+ 98231713 × 80000 that equals 7858537040000
+ 98231713 × 000000 which equals 0
+ 98231713 × 2000000 giving us 196463426000000
+ 98231713 × 70000000 that results in 6876219910000000

= 7080549436881901
