Alright, let's work through 7791 times 9558 step by step
7791 × 9558 = 9558 × (7791)
+ 9558 × 1 yielding 9558
+ 9558 × 90 that equals 860220
+ 9558 × 700 resulting in 6690600
+ 9558 × 7000 yielding 66906000

= 74466378
