No problem, we've got 1777 and 4487 to multiply
1777 × 4487 = 4487 × (1777)
+ 4487 × 7 what gives us 31409
+ 4487 × 70 resulting in 314090
+ 4487 × 700 resulting in 3140900
+ 4487 × 1000 what gives us 4487000

= 7973399
