Question

can you explain how we got the last line

using Euclid's division lemma ​

Answer 1

Answer:

According to Euclid's Division Lemma if we have two positive integers a and b, then there exist unique integers q and r which satisfies the condition a = bq + r where 0 ≤ r < b. The basis of the Euclidean division algorithm is Euclid's division lemma.