No problem, we've got 81992404 and 48887172 to multiply
81992404 × 48887172 = 48887172 × (81992404)
+ 48887172 × 4 which equals 195548688
+ 48887172 × 00 that is equal 0
+ 48887172 × 400 producing 19554868800
+ 48887172 × 2000 yielding 97774344000
+ 48887172 × 90000 that is equal 4399845480000
+ 48887172 × 900000 resulting in 43998454800000
+ 48887172 × 1000000 producing 48887172000000
+ 48887172 × 80000000 that equals 3910973760000000

= 4008376757041488
