No problem, we've got 1145 and 5439 to multiply
1145 × 5439 = 5439 × (1145)
+ 5439 × 5 giving us 27195
+ 5439 × 40 producing 217560
+ 5439 × 100 which equals 543900
+ 5439 × 1000 resulting in 5439000

= 6227655
