Alright, let's work through 28372807 times 74458757 step by step
28372807 × 74458757 = 74458757 × (28372807)
+ 74458757 × 7 what gives us 521211299
+ 74458757 × 00 which equals 0
+ 74458757 × 800 that equals 59567005600
+ 74458757 × 2000 that is equal 148917514000
+ 74458757 × 70000 giving us 5212112990000
+ 74458757 × 300000 yielding 22337627100000
+ 74458757 × 8000000 producing 595670056000000
+ 74458757 × 20000000 which equals 1489175140000000

= 2112603941820899
