Alright, let's work through 48503909 times 86826428 step by step
48503909 × 86826428 = 86826428 × (48503909)
+ 86826428 × 9 giving us 781437852
+ 86826428 × 00 which equals 0
+ 86826428 × 900 that results in 78143785200
+ 86826428 × 3000 yielding 260479284000
+ 86826428 × 00000 giving us 0
+ 86826428 × 500000 producing 43413214000000
+ 86826428 × 8000000 resulting in 694611424000000
+ 86826428 × 40000000 that results in 3473057120000000

= 4211421162507052
