Alright, let's work through 78254844 times 49798473 step by step
78254844 × 49798473 = 49798473 × (78254844)
+ 49798473 × 4 giving us 199193892
+ 49798473 × 40 producing 1991938920
+ 49798473 × 800 that equals 39838778400
+ 49798473 × 4000 which equals 199193892000
+ 49798473 × 50000 producing 2489923650000
+ 49798473 × 200000 giving us 9959694600000
+ 49798473 × 8000000 resulting in 398387784000000
+ 49798473 × 70000000 that is equal 3485893110000000

= 3896971736053212
