No problem, we've got 98412188 and 40354451 to multiply
98412188 × 40354451 = 40354451 × (98412188)
+ 40354451 × 8 that is equal 322835608
+ 40354451 × 80 what gives us 3228356080
+ 40354451 × 100 giving us 4035445100
+ 40354451 × 2000 that is equal 80708902000
+ 40354451 × 10000 what gives us 403544510000
+ 40354451 × 400000 which equals 16141780400000
+ 40354451 × 8000000 resulting in 322835608000000
+ 40354451 × 90000000 resulting in 3631900590000000

= 3971369818448788
