Alright, let's work through 4512 times 7961 step by step
4512 × 7961 = 7961 × (4512)
+ 7961 × 2 that equals 15922
+ 7961 × 10 resulting in 79610
+ 7961 × 500 producing 3980500
+ 7961 × 4000 which equals 31844000

= 35920032
