Alright, let's work through 797445 times 5173979 step by step
797445 × 5173979 = 5173979 × (797445)
+ 5173979 × 5 what gives us 25869895
+ 5173979 × 40 producing 206959160
+ 5173979 × 400 which equals 2069591600
+ 5173979 × 7000 yielding 36217853000
+ 5173979 × 90000 giving us 465658110000
+ 5173979 × 700000 producing 3621785300000

= 4125963683655
