Alright, let's work through 87978924 times 47093922 step by step
87978924 × 47093922 = 47093922 × (87978924)
+ 47093922 × 4 yielding 188375688
+ 47093922 × 20 that results in 941878440
+ 47093922 × 900 resulting in 42384529800
+ 47093922 × 8000 that equals 376751376000
+ 47093922 × 70000 what gives us 3296574540000
+ 47093922 × 900000 that equals 42384529800000
+ 47093922 × 7000000 giving us 329657454000000
+ 47093922 × 80000000 which equals 3767513760000000

= 4143272584499928
