Alright, let's work through 85980704 times 89199077 step by step
85980704 × 89199077 = 89199077 × (85980704)
+ 89199077 × 4 yielding 356796308
+ 89199077 × 00 that results in 0
+ 89199077 × 700 yielding 62439353900
+ 89199077 × 0000 resulting in 0
+ 89199077 × 80000 giving us 7135926160000
+ 89199077 × 900000 resulting in 80279169300000
+ 89199077 × 5000000 what gives us 445995385000000
+ 89199077 × 80000000 that equals 7135926160000000

= 7669399436610208
