Alright, let's work through 1018 times 5101 step by step
1018 × 5101 = 5101 × (1018)
+ 5101 × 8 what gives us 40808
+ 5101 × 10 what gives us 51010
+ 5101 × 000 yielding 0
+ 5101 × 1000 what gives us 5101000

= 5192818
