Let's calculate 8172 x 6660
8172 × 6660 = 6660 × (8172)
+ 6660 × 2 that results in 13320
+ 6660 × 70 what gives us 466200
+ 6660 × 100 which equals 666000
+ 6660 × 8000 what gives us 53280000

= 54425520
