No problem, we've got 28120309 and 41892512 to multiply
28120309 × 41892512 = 41892512 × (28120309)
+ 41892512 × 9 resulting in 377032608
+ 41892512 × 00 what gives us 0
+ 41892512 × 300 producing 12567753600
+ 41892512 × 0000 resulting in 0
+ 41892512 × 20000 giving us 837850240000
+ 41892512 × 100000 which equals 4189251200000
+ 41892512 × 8000000 that is equal 335140096000000
+ 41892512 × 20000000 what gives us 837850240000000

= 1178030382226208
