Alright, let's work through 5160741 times 77538101 step by step
5160741 × 77538101 = 77538101 × (5160741)
+ 77538101 × 1 what gives us 77538101
+ 77538101 × 40 producing 3101524040
+ 77538101 × 700 resulting in 54276670700
+ 77538101 × 0000 that equals 0
+ 77538101 × 60000 giving us 4652286060000
+ 77538101 × 100000 which equals 7753810100000
+ 77538101 × 5000000 resulting in 387690505000000

= 400154056892841
