Alright, let's work through 86974831 times 25358654 step by step
86974831 × 25358654 = 25358654 × (86974831)
+ 25358654 × 1 resulting in 25358654
+ 25358654 × 30 giving us 760759620
+ 25358654 × 800 giving us 20286923200
+ 25358654 × 4000 which equals 101434616000
+ 25358654 × 70000 giving us 1775105780000
+ 25358654 × 900000 that equals 22822788600000
+ 25358654 × 6000000 that results in 152151924000000
+ 25358654 × 80000000 resulting in 2028692320000000

= 2205564646037474
