No problem, we've got 1507 and 5503 to multiply
1507 × 5503 = 5503 × (1507)
+ 5503 × 7 which equals 38521
+ 5503 × 00 that is equal 0
+ 5503 × 500 that equals 2751500
+ 5503 × 1000 resulting in 5503000

= 8293021
