No problem, we've got 1173 and 3978 to multiply
1173 × 3978 = 3978 × (1173)
+ 3978 × 3 which equals 11934
+ 3978 × 70 that equals 278460
+ 3978 × 100 what gives us 397800
+ 3978 × 1000 giving us 3978000

= 4666194
