Alright, let's work through 63847082 times 5420229 step by step
63847082 × 5420229 = 5420229 × (63847082)
+ 5420229 × 2 yielding 10840458
+ 5420229 × 80 that equals 433618320
+ 5420229 × 000 resulting in 0
+ 5420229 × 7000 resulting in 37941603000
+ 5420229 × 40000 resulting in 216809160000
+ 5420229 × 800000 yielding 4336183200000
+ 5420229 × 3000000 that is equal 16260687000000
+ 5420229 × 60000000 which equals 325213740000000

= 346065805421778
