Alright, let's work through 3134545 times 1998587 step by step
3134545 × 1998587 = 1998587 × (3134545)
+ 1998587 × 5 what gives us 9992935
+ 1998587 × 40 that results in 79943480
+ 1998587 × 500 that results in 999293500
+ 1998587 × 4000 that results in 7994348000
+ 1998587 × 30000 yielding 59957610000
+ 1998587 × 100000 yielding 199858700000
+ 1998587 × 3000000 yielding 5995761000000

= 6264660887915
