Alright, let's work through 88042356 times 7660558 step by step
88042356 × 7660558 = 7660558 × (88042356)
+ 7660558 × 6 producing 45963348
+ 7660558 × 50 what gives us 383027900
+ 7660558 × 300 resulting in 2298167400
+ 7660558 × 2000 producing 15321116000
+ 7660558 × 40000 yielding 306422320000
+ 7660558 × 000000 yielding 0
+ 7660558 × 8000000 that equals 61284464000000
+ 7660558 × 80000000 yielding 612844640000000

= 674453574594648
