No problem, we've got 4854 and 1778 to multiply
4854 × 1778 = 1778 × (4854)
+ 1778 × 4 what gives us 7112
+ 1778 × 50 giving us 88900
+ 1778 × 800 that is equal 1422400
+ 1778 × 4000 which equals 7112000

= 8630412
