No problem, we've got 2178 and 3800 to multiply
2178 × 3800 = 3800 × (2178)
+ 3800 × 8 that equals 30400
+ 3800 × 70 resulting in 266000
+ 3800 × 100 that equals 380000
+ 3800 × 2000 that equals 7600000

= 8276400
