Alright, let's work through 63731801 times 79339279 step by step
63731801 × 79339279 = 79339279 × (63731801)
+ 79339279 × 1 resulting in 79339279
+ 79339279 × 00 that results in 0
+ 79339279 × 800 producing 63471423200
+ 79339279 × 1000 that results in 79339279000
+ 79339279 × 30000 that is equal 2380178370000
+ 79339279 × 700000 that results in 55537495300000
+ 79339279 × 3000000 which equals 238017837000000
+ 79339279 × 60000000 that results in 4760356740000000

= 5056435140711479
