No problem, we've got 40506714 and 21324938 to multiply
40506714 × 21324938 = 21324938 × (40506714)
+ 21324938 × 4 which equals 85299752
+ 21324938 × 10 giving us 213249380
+ 21324938 × 700 that equals 14927456600
+ 21324938 × 6000 yielding 127949628000
+ 21324938 × 00000 what gives us 0
+ 21324938 × 500000 that is equal 10662469000000
+ 21324938 × 0000000 that is equal 0
+ 21324938 × 40000000 that is equal 852997520000000

= 863803164633732
