Alright, let's work through 96521090 times 86106880 step by step
96521090 × 86106880 = 86106880 × (96521090)
+ 86106880 × 0 yielding 0
+ 86106880 × 90 what gives us 7749619200
+ 86106880 × 000 that results in 0
+ 86106880 × 1000 that is equal 86106880000
+ 86106880 × 20000 yielding 1722137600000
+ 86106880 × 500000 which equals 43053440000000
+ 86106880 × 6000000 which equals 516641280000000
+ 86106880 × 90000000 producing 7749619200000000

= 8311129914099200
