No problem, we've got 1155 and 2497 to multiply
1155 × 2497 = 2497 × (1155)
+ 2497 × 5 which equals 12485
+ 2497 × 50 giving us 124850
+ 2497 × 100 giving us 249700
+ 2497 × 1000 yielding 2497000

= 2884035
