Alright, let's work through 89899158 times 52049390 step by step
89899158 × 52049390 = 52049390 × (89899158)
+ 52049390 × 8 producing 416395120
+ 52049390 × 50 resulting in 2602469500
+ 52049390 × 100 yielding 5204939000
+ 52049390 × 9000 resulting in 468444510000
+ 52049390 × 90000 yielding 4684445100000
+ 52049390 × 800000 that is equal 41639512000000
+ 52049390 × 9000000 that results in 468444510000000
+ 52049390 × 80000000 resulting in 4163951200000000

= 4679196335413620
