No problem, we've got 7777 and 7000 to multiply
7777 × 7000 = 7000 × (7777)
+ 7000 × 7 producing 49000
+ 7000 × 70 that results in 490000
+ 7000 × 700 that is equal 4900000
+ 7000 × 7000 giving us 49000000

= 54439000
