We look at the division of 91781457 by 3 
We're looking to find how many times 3 goes into 91781457.

On to step 1:
The number 3 fits into 9 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 0 after subtracting 9 from 9.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Going ahead to step 2:
3 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 30.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 3

On to step 3:
3 goes into 17 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 305.0
If we take 15 away from 17, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 3

Going ahead to step 4:
When dividing 28 by 3, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 3059.0
Subtract 27 from 28 to get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 3

Let's proceed to step 5:
If we divide 11 by 3, we get 3 and a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 30593.0
Subtracting 9 from 11 leaves us with 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 3

Let's proceed to step 6:
When dividing 24 by 3, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 305938.0
The remainder is 0 after subtracting 24 from 24.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 3

On to step 7:
If we divide 5 by 3, we get 1 and a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 3059381.0
Subtract 3 from 5 to get 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 3

On to step 8:
3 goes into 27 9 times with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 30593819.0
If we take 27 away from 27, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
3 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30593819.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 30593819.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 30593819.0, and the remainder is 0.0.