Alright, let's work through 4048409 times 87047992 step by step
4048409 × 87047992 = 87047992 × (4048409)
+ 87047992 × 9 that is equal 783431928
+ 87047992 × 00 resulting in 0
+ 87047992 × 400 that equals 34819196800
+ 87047992 × 8000 yielding 696383936000
+ 87047992 × 40000 that results in 3481919680000
+ 87047992 × 000000 yielding 0
+ 87047992 × 4000000 giving us 348191968000000

= 352405874244728
