866633 ÷ 57 
We're looking to find how many times 57 goes into 866633.

Step 1:
57 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 57

Let's proceed to step 2:
When dividing 86 by 57, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 29 after subtracting 57 from 86.
Fetch the next digit (6) from the dividend, attach it to 29 and continue: 296 / 57

Step 3:
When dividing 296 by 57, we get 5 with a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 285 away from 296, we end up with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 57

Moving on to step 4:
57 can be fit into 116 2 times, resulting in a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 152.0
If we subtract 114 from 116, we get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 57

Going ahead to step 5:
23 divided by 57 is 0 with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 1520.0
If we take 0 away from 23, we end up with 23.
Fetch the next digit (3) from the dividend, attach it to 23 and continue: 233 / 57

Moving on to step 6:
57 can be fit into 233 4 times, resulting in a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 15204.0
If we subtract 228 from 233, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
57 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 15204.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
When dividing 500 by 57, we get 8 with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 15204.08
Subtracting 456 from 500 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 9:
The number 57 fits into 440 7 times, leaving a remainder of 41.
Record the quotient 7 as the next digit in the result. 
Result so far: 15204.087
The remainder is 41 after subtracting 399 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 10:
57 can be fit into 410 7 times, resulting in a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 15204.0877
The remainder is 11 after subtracting 399 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Our division results in 15204.0877 with a remaining 0.00011.