Let's divide 803857 by 53
Let's see how many times 53 fits into 803857.

Step 1:
53 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 53

Advancing to step 2:
When dividing 80 by 53, we get 1 with a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 53 away from 80, we end up with 27.
Include the next digit (3) from the dividend after 27, then repeat: 273 / 53

Going ahead to step 3:
When dividing 273 by 53, we get 5 with a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 265 from 273 leaves us with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 53

On to step 4:
When dividing 88 by 53, we get 1 with a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 151.0
Subtract 53 from 88 to get 35.
Bring next digit (5) of the dividend behind the 35 and repeat the process: 355 / 53

Let's proceed to step 5:
355 divided by 53 is 6 with a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 1516.0
Subtracting 318 from 355 leaves us with 37.
Take the next digit (7) from the dividend and append it to 37, then repeat: 377 / 53

On to step 6:
When dividing 377 by 53, we get 7 with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 15167.0
Deduct 371 from 377 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
The number 53 fits into 60 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 15167.1
If we take 53 away from 60, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 8:
53 can be fit into 70 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 15167.11
The remainder is 17 after subtracting 53 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 15167.11, with a leftover of 0.017.