Alright, let's work through 99381874 times 7124498 step by step
99381874 × 7124498 = 7124498 × (99381874)
+ 7124498 × 4 producing 28497992
+ 7124498 × 70 what gives us 498714860
+ 7124498 × 800 yielding 5699598400
+ 7124498 × 1000 that is equal 7124498000
+ 7124498 × 80000 that results in 569959840000
+ 7124498 × 300000 yielding 2137349400000
+ 7124498 × 9000000 yielding 64120482000000
+ 7124498 × 90000000 that results in 641204820000000

= 708045962549252
