No problem, we've got 3157 and 4851 to multiply
3157 × 4851 = 4851 × (3157)
+ 4851 × 7 that equals 33957
+ 4851 × 50 what gives us 242550
+ 4851 × 100 that equals 485100
+ 4851 × 3000 which equals 14553000

= 15314607
