Alright, let's work through 65640842 times 90792707 step by step
65640842 × 90792707 = 90792707 × (65640842)
+ 90792707 × 2 resulting in 181585414
+ 90792707 × 40 that results in 3631708280
+ 90792707 × 800 which equals 72634165600
+ 90792707 × 0000 resulting in 0
+ 90792707 × 40000 which equals 3631708280000
+ 90792707 × 600000 that equals 54475624200000
+ 90792707 × 5000000 that equals 453963535000000
+ 90792707 × 60000000 giving us 5447562420000000

= 5959709734939294
