Alright, let's work through 38757943 times 9971555 step by step
38757943 × 9971555 = 9971555 × (38757943)
+ 9971555 × 3 what gives us 29914665
+ 9971555 × 40 resulting in 398862200
+ 9971555 × 900 giving us 8974399500
+ 9971555 × 7000 that is equal 69800885000
+ 9971555 × 50000 that equals 498577750000
+ 9971555 × 700000 giving us 6980088500000
+ 9971555 × 8000000 which equals 79772440000000
+ 9971555 × 30000000 that is equal 299146650000000

= 386476960311365
