No problem, we've got 54066461 and 86419636 to multiply
54066461 × 86419636 = 86419636 × (54066461)
+ 86419636 × 1 resulting in 86419636
+ 86419636 × 60 which equals 5185178160
+ 86419636 × 400 that equals 34567854400
+ 86419636 × 6000 producing 518517816000
+ 86419636 × 60000 what gives us 5185178160000
+ 86419636 × 000000 which equals 0
+ 86419636 × 4000000 resulting in 345678544000000
+ 86419636 × 50000000 that results in 4320981800000000

= 4672403879428196
