No problem, we've got 80386199 and 13438984 to multiply
80386199 × 13438984 = 13438984 × (80386199)
+ 13438984 × 9 giving us 120950856
+ 13438984 × 90 what gives us 1209508560
+ 13438984 × 100 giving us 1343898400
+ 13438984 × 6000 what gives us 80633904000
+ 13438984 × 80000 that results in 1075118720000
+ 13438984 × 300000 which equals 4031695200000
+ 13438984 × 0000000 resulting in 0
+ 13438984 × 80000000 that is equal 1075118720000000

= 1080308842181816
