We're going to solve 81423311 multiplied by 7100022
81423311 × 7100022 = 7100022 × (81423311)
+ 7100022 × 1 resulting in 7100022
+ 7100022 × 10 producing 71000220
+ 7100022 × 300 which equals 2130006600
+ 7100022 × 3000 giving us 21300066000
+ 7100022 × 20000 resulting in 142000440000
+ 7100022 × 400000 that results in 2840008800000
+ 7100022 × 1000000 producing 7100022000000
+ 7100022 × 80000000 yielding 568001760000000

= 578107299412842
