Alright, let's work through 7961433 times 3621315 step by step
7961433 × 3621315 = 3621315 × (7961433)
+ 3621315 × 3 that results in 10863945
+ 3621315 × 30 producing 108639450
+ 3621315 × 400 which equals 1448526000
+ 3621315 × 1000 that equals 3621315000
+ 3621315 × 60000 that equals 217278900000
+ 3621315 × 900000 producing 3259183500000
+ 3621315 × 7000000 yielding 25349205000000

= 28830856744395
