Alright, let's work through 83488925 times 66031123 step by step
83488925 × 66031123 = 66031123 × (83488925)
+ 66031123 × 5 that results in 330155615
+ 66031123 × 20 producing 1320622460
+ 66031123 × 900 which equals 59428010700
+ 66031123 × 8000 producing 528248984000
+ 66031123 × 80000 resulting in 5282489840000
+ 66031123 × 400000 yielding 26412449200000
+ 66031123 × 3000000 yielding 198093369000000
+ 66031123 × 80000000 which equals 5282489840000000

= 5512867475812775
