Alright, let's work through 86465109 times 61923032 step by step
86465109 × 61923032 = 61923032 × (86465109)
+ 61923032 × 9 producing 557307288
+ 61923032 × 00 that equals 0
+ 61923032 × 100 that results in 6192303200
+ 61923032 × 5000 giving us 309615160000
+ 61923032 × 60000 that results in 3715381920000
+ 61923032 × 400000 resulting in 24769212800000
+ 61923032 × 6000000 that equals 371538192000000
+ 61923032 × 80000000 that results in 4953842560000000

= 5354181711490488
