Alright, let's work through 7991 times 4415 step by step
7991 × 4415 = 4415 × (7991)
+ 4415 × 1 that results in 4415
+ 4415 × 90 producing 397350
+ 4415 × 900 that equals 3973500
+ 4415 × 7000 that is equal 30905000

= 35280265
