Alright, let's work through 45752254 times 56638998 step by step
45752254 × 56638998 = 56638998 × (45752254)
+ 56638998 × 4 what gives us 226555992
+ 56638998 × 50 resulting in 2831949900
+ 56638998 × 200 yielding 11327799600
+ 56638998 × 2000 that results in 113277996000
+ 56638998 × 50000 which equals 2831949900000
+ 56638998 × 700000 that results in 39647298600000
+ 56638998 × 5000000 that is equal 283194990000000
+ 56638998 × 40000000 yielding 2265559920000000

= 2591361822801492
