57152403 divided by 800 
We want to figure out the number of times 57152403 can be divided by 800.

Going ahead to step 1:
800 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 800

Step 2:
The number 800 fits into 57 0 times, leaving a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 800

Step 3:
When dividing 571 by 800, we get 0 with a remainder of 571.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 571 after subtracting 0 from 571.
Take the next digit (5) from the dividend and append it to 571, then repeat: 5715 / 800

Step 4:
When dividing 5715 by 800, we get 7 with a remainder of 115.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 5600 from 5715 leaves us with 115.
Grab the next digit (2) from the dividend, add it to 115, then carry on: 1152 / 800

Advancing to step 5:
800 goes into 1152 1 times with a remainder of 352.
Write down 1 as next digit of the result. 
Result so far: 71.0
If we subtract 800 from 1152, we get 352.
Include the next digit (4) from the dividend after 352, then repeat: 3524 / 800

Step 6:
The number 800 fits into 3524 4 times, leaving a remainder of 324.
Use 4 as the next digit of our solution. 
Result so far: 714.0
Subtract 3200 from 3524 to get 324.
Include the next digit (0) from the dividend after 324, then repeat: 3240 / 800

Advancing to step 7:
If we divide 3240 by 800, we get 4 and a remainder of 40.
The next digit of our result is 4. 
Result so far: 7144.0
If we take 3200 away from 3240, we end up with 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 800

On to step 8:
The number 800 fits into 403 0 times, leaving a remainder of 403.
The next digit of our result is 0. 
Result so far: 71440.0
Deduct 0 from 403 and we're left with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Let's proceed to step 9:
The number 800 fits into 4030 5 times, leaving a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 71440.5
Subtract 4000 from 4030 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
When dividing 300 by 800, we get 0 with a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 71440.5
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
800 can be fit into 3000 3 times, resulting in a remainder of 600.
Record the quotient 3 as the next digit in the result. 
Result so far: 71440.503
If we subtract 2400 from 3000, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 12:
800 can be fit into 6000 7 times, resulting in a remainder of 400.
The number 7 becomes the next digit in our result. 
Result so far: 71440.5037
Deduct 5600 from 6000 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 13:
4000 divided by 800 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 71440.50375
If we subtract 4000 from 4000, we 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.

On to step 14:
The number 800 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 71440.50375
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.

Moving on to step 15:
When dividing 0 by 800, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 71440.50375
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.

The final result is 71440.50375 with a remainder of 0.0.