No problem, we've got 18808786 and 13720836 to multiply
18808786 × 13720836 = 13720836 × (18808786)
+ 13720836 × 6 yielding 82325016
+ 13720836 × 80 which equals 1097666880
+ 13720836 × 700 that results in 9604585200
+ 13720836 × 8000 what gives us 109766688000
+ 13720836 × 00000 producing 0
+ 13720836 × 800000 giving us 10976668800000
+ 13720836 × 8000000 yielding 109766688000000
+ 13720836 × 10000000 producing 137208360000000

= 258072268065096
