No problem, we've got 40067692 and 20394706 to multiply
40067692 × 20394706 = 20394706 × (40067692)
+ 20394706 × 2 that results in 40789412
+ 20394706 × 90 what gives us 1835523540
+ 20394706 × 600 that results in 12236823600
+ 20394706 × 7000 producing 142762942000
+ 20394706 × 60000 giving us 1223682360000
+ 20394706 × 000000 what gives us 0
+ 20394706 × 0000000 giving us 0
+ 20394706 × 40000000 that results in 815788240000000

= 817168798438552
