Alright, let's work through 45314994 times 78190215 step by step
45314994 × 78190215 = 78190215 × (45314994)
+ 78190215 × 4 producing 312760860
+ 78190215 × 90 that is equal 7037119350
+ 78190215 × 900 resulting in 70371193500
+ 78190215 × 4000 that results in 312760860000
+ 78190215 × 10000 what gives us 781902150000
+ 78190215 × 300000 which equals 23457064500000
+ 78190215 × 5000000 that results in 390951075000000
+ 78190215 × 40000000 that results in 3127608600000000

= 3543189123583710
