Alright, let's work through 48278135 times 77800667 step by step
48278135 × 77800667 = 77800667 × (48278135)
+ 77800667 × 5 that results in 389003335
+ 77800667 × 30 giving us 2334020010
+ 77800667 × 100 giving us 7780066700
+ 77800667 × 8000 what gives us 622405336000
+ 77800667 × 70000 resulting in 5446046690000
+ 77800667 × 200000 resulting in 15560133400000
+ 77800667 × 8000000 yielding 622405336000000
+ 77800667 × 40000000 which equals 3112026680000000

= 3756071104516045
