Alright, let's work through 80920961 times 36411776 step by step
80920961 × 36411776 = 36411776 × (80920961)
+ 36411776 × 1 what gives us 36411776
+ 36411776 × 60 which equals 2184706560
+ 36411776 × 900 yielding 32770598400
+ 36411776 × 0000 yielding 0
+ 36411776 × 20000 which equals 728235520000
+ 36411776 × 900000 yielding 32770598400000
+ 36411776 × 0000000 that is equal 0
+ 36411776 × 80000000 that is equal 2912942080000000

= 2946475905636736
