No problem, we've got 63426729 and 42171734 to multiply
63426729 × 42171734 = 42171734 × (63426729)
+ 42171734 × 9 that is equal 379545606
+ 42171734 × 20 what gives us 843434680
+ 42171734 × 700 giving us 29520213800
+ 42171734 × 6000 giving us 253030404000
+ 42171734 × 20000 what gives us 843434680000
+ 42171734 × 400000 what gives us 16868693600000
+ 42171734 × 3000000 that equals 126515202000000
+ 42171734 × 60000000 that results in 2530304040000000

= 2674815143878086
