No problem, we've got 41112164 and 20419312 to multiply
41112164 × 20419312 = 20419312 × (41112164)
+ 20419312 × 4 giving us 81677248
+ 20419312 × 60 yielding 1225158720
+ 20419312 × 100 what gives us 2041931200
+ 20419312 × 2000 that equals 40838624000
+ 20419312 × 10000 giving us 204193120000
+ 20419312 × 100000 that is equal 2041931200000
+ 20419312 × 1000000 that is equal 20419312000000
+ 20419312 × 40000000 giving us 816772480000000

= 839482103711168
