No problem, we've got 80190440 and 38899936 to multiply
80190440 × 38899936 = 38899936 × (80190440)
+ 38899936 × 0 giving us 0
+ 38899936 × 40 that results in 1555997440
+ 38899936 × 400 resulting in 15559974400
+ 38899936 × 0000 what gives us 0
+ 38899936 × 90000 that is equal 3500994240000
+ 38899936 × 100000 yielding 3889993600000
+ 38899936 × 0000000 giving us 0
+ 38899936 × 80000000 which equals 3111994880000000

= 3119402983811840
