Alright, let's work through 80163932 times 39183377 step by step
80163932 × 39183377 = 39183377 × (80163932)
+ 39183377 × 2 which equals 78366754
+ 39183377 × 30 resulting in 1175501310
+ 39183377 × 900 what gives us 35265039300
+ 39183377 × 3000 giving us 117550131000
+ 39183377 × 60000 giving us 2351002620000
+ 39183377 × 100000 that is equal 3918337700000
+ 39183377 × 0000000 which equals 0
+ 39183377 × 80000000 that is equal 3134670160000000

= 3141093569358364
