No problem, we've got 4870 and 5705 to multiply
4870 × 5705 = 5705 × (4870)
+ 5705 × 0 what gives us 0
+ 5705 × 70 giving us 399350
+ 5705 × 800 what gives us 4564000
+ 5705 × 4000 yielding 22820000

= 27783350
