No problem, we've got 40008480 and 31395926 to multiply
40008480 × 31395926 = 31395926 × (40008480)
+ 31395926 × 0 producing 0
+ 31395926 × 80 producing 2511674080
+ 31395926 × 400 that is equal 12558370400
+ 31395926 × 8000 which equals 251167408000
+ 31395926 × 00000 yielding 0
+ 31395926 × 000000 which equals 0
+ 31395926 × 0000000 resulting in 0
+ 31395926 × 40000000 producing 1255837040000000

= 1256103277452480
