No problem, we've got 42115359 and 66529319 to multiply
42115359 × 66529319 = 66529319 × (42115359)
+ 66529319 × 9 giving us 598763871
+ 66529319 × 50 that results in 3326465950
+ 66529319 × 300 which equals 19958795700
+ 66529319 × 5000 that equals 332646595000
+ 66529319 × 10000 what gives us 665293190000
+ 66529319 × 100000 which equals 6652931900000
+ 66529319 × 2000000 that is equal 133058638000000
+ 66529319 × 40000000 which equals 2661172760000000

= 2801906153710521
