Alright, let's work through 45307753 times 42848413 step by step
45307753 × 42848413 = 42848413 × (45307753)
+ 42848413 × 3 what gives us 128545239
+ 42848413 × 50 which equals 2142420650
+ 42848413 × 700 what gives us 29993889100
+ 42848413 × 7000 which equals 299938891000
+ 42848413 × 00000 giving us 0
+ 42848413 × 300000 resulting in 12854523900000
+ 42848413 × 5000000 which equals 214242065000000
+ 42848413 × 40000000 which equals 1713936520000000

= 1941365312645989
