Alright, let's work through 55107957 times 538973 step by step
55107957 × 538973 = 538973 × (55107957)
+ 538973 × 7 that results in 3772811
+ 538973 × 50 yielding 26948650
+ 538973 × 900 yielding 485075700
+ 538973 × 7000 yielding 3772811000
+ 538973 × 00000 resulting in 0
+ 538973 × 100000 that results in 53897300000
+ 538973 × 5000000 resulting in 2694865000000
+ 538973 × 50000000 that results in 26948650000000

= 29701700908161
