without doing actual division, find the remainder when;

- 981547 is divided by 5
- 51439786 is divided by 3
- 798 is divided by 11

also write the steps to find the ans.

1.

A number is divisible by 5, if the digit at its unit's place is 0 or 5.

Consider the number 981547.

Unit digit of the number is 7. When 7 is divided by 5, the remainder obtained is 2.

Thus, 981547 when divided by 5 leaves the remainder 2.

2.

A number is divided by three, if the sum of its digit is divisible by 3.

Sum of digit of the number 51439786 = 5 + 1 + 4 + 3 + 9 + 7 + 8 + 6 = 43

43 is not divisible by 3. But, 43 – 1 = 42 is divisible by 3.

So, 51439785 is divisible by 3.

Thus, 51439786 when divided by 3, leaves the remainder 1.

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