800816 divided by 53 
We're looking to find how many times 53 goes into 800816.

Moving on to 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
Subtract 0 from 8 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 53

Moving on to step 2:
The number 53 fits into 80 1 times, leaving a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 27 after subtracting 53 from 80.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 53

Step 3:
If we divide 270 by 53, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 265 from 270 and we're left with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 53

Let's proceed to step 4:
The number 53 fits into 58 1 times, leaving a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 151.0
Subtracting 53 from 58 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 53

Let's proceed to step 5:
51 divided by 53 is 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 1510.0
Subtracting 0 from 51 leaves us with 51.
Grab the next digit (6) from the dividend, add it to 51, then carry on: 516 / 53

Advancing to step 6:
53 goes into 516 9 times with a remainder of 39.
The number 9 becomes the next digit in our result. 
Result so far: 15109.0
If we take 477 away from 516, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 7:
The number 53 fits into 390 7 times, leaving a remainder of 19.
The next digit of our result is 7. 
Result so far: 15109.7
If we take 371 away from 390, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 8:
The number 53 fits into 190 3 times, leaving a remainder of 31.
The next digit of our result is 3. 
Result so far: 15109.73
Subtracting 159 from 190 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 9:
The number 53 fits into 310 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 15109.735
If we subtract 265 from 310, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
450 divided by 53 is 8 with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 15109.7358
Subtract 424 from 450 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 11:
If we divide 260 by 53, we get 4 and a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 15109.73584
If we subtract 212 from 260, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
480 divided by 53 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 15109.735849
If we take 477 away from 480, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
30 divided by 53 is 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 15109.735849
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
53 goes into 300 5 times with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 15109.73584905
If we take 265 away from 300, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 15109.73584905, and the remainder is 3.5e-08.