Alright, let's work through 86423674 times 97006354 step by step
86423674 × 97006354 = 97006354 × (86423674)
+ 97006354 × 4 producing 388025416
+ 97006354 × 70 resulting in 6790444780
+ 97006354 × 600 giving us 58203812400
+ 97006354 × 3000 resulting in 291019062000
+ 97006354 × 20000 producing 1940127080000
+ 97006354 × 400000 that results in 38802541600000
+ 97006354 × 6000000 that is equal 582038124000000
+ 97006354 × 80000000 that equals 7760508320000000

= 8383645514024596
