Alright, let's work through 99847646 times 48139601 step by step
99847646 × 48139601 = 48139601 × (99847646)
+ 48139601 × 6 producing 288837606
+ 48139601 × 40 giving us 1925584040
+ 48139601 × 600 what gives us 28883760600
+ 48139601 × 7000 that equals 336977207000
+ 48139601 × 40000 giving us 1925584040000
+ 48139601 × 800000 that equals 38511680800000
+ 48139601 × 9000000 that equals 433256409000000
+ 48139601 × 90000000 resulting in 4332564090000000

= 4806625839229246
