Alright, let's work through 748673 times 5680251 step by step
748673 × 5680251 = 5680251 × (748673)
+ 5680251 × 3 yielding 17040753
+ 5680251 × 70 that results in 397617570
+ 5680251 × 600 giving us 3408150600
+ 5680251 × 8000 what gives us 45442008000
+ 5680251 × 40000 resulting in 227210040000
+ 5680251 × 700000 that results in 3976175700000

= 4252650556923
