Alright, let's work through 49615684 times 77428380 step by step
49615684 × 77428380 = 77428380 × (49615684)
+ 77428380 × 4 giving us 309713520
+ 77428380 × 80 what gives us 6194270400
+ 77428380 × 600 yielding 46457028000
+ 77428380 × 5000 what gives us 387141900000
+ 77428380 × 10000 producing 774283800000
+ 77428380 × 600000 giving us 46457028000000
+ 77428380 × 9000000 resulting in 696855420000000
+ 77428380 × 40000000 giving us 3097135200000000

= 3841662034711920
