We're going to solve 8644 multiplied by 8368
8644 × 8368 = 8368 × (8644)
+ 8368 × 4 that equals 33472
+ 8368 × 40 what gives us 334720
+ 8368 × 600 that equals 5020800
+ 8368 × 8000 which equals 66944000

= 72332992
