No problem, we've got 18139485 and 36207477 to multiply
18139485 × 36207477 = 36207477 × (18139485)
+ 36207477 × 5 that is equal 181037385
+ 36207477 × 80 yielding 2896598160
+ 36207477 × 400 that results in 14482990800
+ 36207477 × 9000 giving us 325867293000
+ 36207477 × 30000 producing 1086224310000
+ 36207477 × 100000 resulting in 3620747700000
+ 36207477 × 8000000 resulting in 289659816000000
+ 36207477 × 10000000 yielding 362074770000000

= 656784985929345
