Alright, let's work through 789978 times 39824634 step by step
789978 × 39824634 = 39824634 × (789978)
+ 39824634 × 8 giving us 318597072
+ 39824634 × 70 that results in 2787724380
+ 39824634 × 900 that equals 35842170600
+ 39824634 × 9000 resulting in 358421706000
+ 39824634 × 80000 producing 3185970720000
+ 39824634 × 700000 which equals 27877243800000

= 31460584718052
