Alright, let's work through 97902031 times 61397921 step by step
97902031 × 61397921 = 61397921 × (97902031)
+ 61397921 × 1 which equals 61397921
+ 61397921 × 30 yielding 1841937630
+ 61397921 × 000 that is equal 0
+ 61397921 × 2000 what gives us 122795842000
+ 61397921 × 00000 what gives us 0
+ 61397921 × 900000 that equals 55258128900000
+ 61397921 × 7000000 resulting in 429785447000000
+ 61397921 × 90000000 which equals 5525812890000000

= 6010981165077551
