No problem, we've got 48521591 and 78753888 to multiply
48521591 × 78753888 = 78753888 × (48521591)
+ 78753888 × 1 yielding 78753888
+ 78753888 × 90 that results in 7087849920
+ 78753888 × 500 yielding 39376944000
+ 78753888 × 1000 which equals 78753888000
+ 78753888 × 20000 resulting in 1575077760000
+ 78753888 × 500000 producing 39376944000000
+ 78753888 × 8000000 resulting in 630031104000000
+ 78753888 × 40000000 producing 3150155520000000

= 3821263943195808
