No problem, we've got 4121 and 6154 to multiply
4121 × 6154 = 6154 × (4121)
+ 6154 × 1 what gives us 6154
+ 6154 × 20 resulting in 123080
+ 6154 × 100 that is equal 615400
+ 6154 × 4000 what gives us 24616000

= 25360634
