No problem, we've got 5146 and 1623 to multiply
5146 × 1623 = 1623 × (5146)
+ 1623 × 6 what gives us 9738
+ 1623 × 40 yielding 64920
+ 1623 × 100 that is equal 162300
+ 1623 × 5000 that results in 8115000

= 8351958
