No problem, we've got 6672410 and 40137798 to multiply
6672410 × 40137798 = 40137798 × (6672410)
+ 40137798 × 0 yielding 0
+ 40137798 × 10 what gives us 401377980
+ 40137798 × 400 what gives us 16055119200
+ 40137798 × 2000 that is equal 80275596000
+ 40137798 × 70000 yielding 2809645860000
+ 40137798 × 600000 producing 24082678800000
+ 40137798 × 6000000 producing 240826788000000

= 267815844753180
