Alright, let's work through 90723688 times 48782949 step by step
90723688 × 48782949 = 48782949 × (90723688)
+ 48782949 × 8 what gives us 390263592
+ 48782949 × 80 what gives us 3902635920
+ 48782949 × 600 that equals 29269769400
+ 48782949 × 3000 that results in 146348847000
+ 48782949 × 20000 producing 975658980000
+ 48782949 × 700000 that equals 34148064300000
+ 48782949 × 0000000 yielding 0
+ 48782949 × 90000000 that is equal 4390465410000000

= 4425769044795912
