Alright, let's work through 83284947 times 54163282 step by step
83284947 × 54163282 = 54163282 × (83284947)
+ 54163282 × 7 yielding 379142974
+ 54163282 × 40 that equals 2166531280
+ 54163282 × 900 that equals 48746953800
+ 54163282 × 4000 that is equal 216653128000
+ 54163282 × 80000 that equals 4333062560000
+ 54163282 × 200000 resulting in 10832656400000
+ 54163282 × 3000000 which equals 162489846000000
+ 54163282 × 80000000 that results in 4333062560000000

= 4510986070716054
