Alright, let's work through 63257971 times 49669307 step by step
63257971 × 49669307 = 49669307 × (63257971)
+ 49669307 × 1 what gives us 49669307
+ 49669307 × 70 yielding 3476851490
+ 49669307 × 900 yielding 44702376300
+ 49669307 × 7000 producing 347685149000
+ 49669307 × 50000 giving us 2483465350000
+ 49669307 × 200000 resulting in 9933861400000
+ 49669307 × 3000000 what gives us 149007921000000
+ 49669307 × 60000000 what gives us 2980158420000000

= 3141979581796097
