No problem, we've got 1597 and 6428 to multiply
1597 × 6428 = 6428 × (1597)
+ 6428 × 7 giving us 44996
+ 6428 × 90 what gives us 578520
+ 6428 × 500 that results in 3214000
+ 6428 × 1000 which equals 6428000

= 10265516
