We look at the division of 45387271 by 849 
Our goal is to divide 45387271 by 849.

On to step 1:
If we divide 4 by 849, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 849

On to step 2:
45 divided by 849 is 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 849

Advancing to step 3:
The number 849 fits into 453 0 times, leaving a remainder of 453.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 453, we get 453.
Fetch the next digit (8) from the dividend, attach it to 453 and continue: 4538 / 849

On to step 4:
When dividing 4538 by 849, we get 5 with a remainder of 293.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 4245 from 4538 to get 293.
Take the next digit (7) from the dividend and append it to 293, then repeat: 2937 / 849

Step 5:
If we divide 2937 by 849, we get 3 and a remainder of 390.
The next digit of our result is 3. 
Result so far: 53.0
The remainder is 390 after subtracting 2547 from 2937.
Grab the next digit (2) from the dividend, add it to 390, then carry on: 3902 / 849

Let's proceed to step 6:
849 goes into 3902 4 times with a remainder of 506.
Use 4 as the next digit of our solution. 
Result so far: 534.0
Deduct 3396 from 3902 and we're left with 506.
Take the next digit (7) from the dividend and append it to 506, then repeat: 5067 / 849

Moving on to step 7:
849 goes into 5067 5 times with a remainder of 822.
Record the quotient 5 as the next digit in the result. 
Result so far: 5345.0
If we subtract 4245 from 5067, we get 822.
Bring next digit (1) of the dividend behind the 822 and repeat the process: 8221 / 849

Advancing to step 8:
When dividing 8221 by 849, we get 9 with a remainder of 580.
Use 9 as the next digit of our solution. 
Result so far: 53459.0
Subtract 7641 from 8221 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 9:
The number 849 fits into 5800 6 times, leaving a remainder of 706.
Record the quotient 6 as the next digit in the result. 
Result so far: 53459.6
If we take 5094 away from 5800, we end up with 706.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

On to step 10:
The number 849 fits into 7060 8 times, leaving a remainder of 268.
The number 8 becomes the next digit in our result. 
Result so far: 53459.68
Deduct 6792 from 7060 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Moving on to step 11:
If we divide 2680 by 849, we get 3 and a remainder of 133.
Put 3 as the next digit of the answer. 
Result so far: 53459.683
If we take 2547 away from 2680, we end up with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

On to step 12:
The number 849 fits into 1330 1 times, leaving a remainder of 481.
Write down 1 as next digit of the result. 
Result so far: 53459.6831
The remainder is 481 after subtracting 849 from 1330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Moving on to step 13:
When dividing 4810 by 849, we get 5 with a remainder of 565.
Write down 5 as next digit of the result. 
Result so far: 53459.68315
If we take 4245 away from 4810, we end up with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Going ahead to step 14:
849 can be fit into 5650 6 times, resulting in a remainder of 556.
Use 6 as the next digit of our solution. 
Result so far: 53459.683156
The remainder is 556 after subtracting 5094 from 5650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

On to step 15:
If we divide 5560 by 849, we get 6 and a remainder of 466.
The next digit of our result is 6. 
Result so far: 53459.6831566
The remainder is 466 after subtracting 5094 from 5560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

After the division, we end up with 53459.6831566 and a remainder of 4.66e-06.