We look at the division of 646586 by 57 
We want to divide 646586 by 57.

On to step 1:
57 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 57

Let's proceed to step 2:
The number 57 fits into 64 1 times, leaving a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 57 from 64 and we're left with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 57

Step 3:
57 can be fit into 76 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 19 after subtracting 57 from 76.
Grab the next digit (5) from the dividend, add it to 19, then carry on: 195 / 57

Let's proceed to step 4:
The number 57 fits into 195 3 times, leaving a remainder of 24.
The next digit of our result is 3. 
Result so far: 113.0
Deduct 171 from 195 and we're left with 24.
Grab the next digit (8) from the dividend, add it to 24, then carry on: 248 / 57

Step 5:
248 divided by 57 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 1134.0
Subtracting 228 from 248 leaves us with 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 57

On to step 6:
When dividing 206 by 57, we get 3 with a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 11343.0
Deduct 171 from 206 and we're left 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.

Step 7:
350 divided by 57 is 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 11343.6
The remainder is 8 after subtracting 342 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
57 goes into 80 1 times with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 11343.61
If we subtract 57 from 80, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 9:
57 goes into 230 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 11343.614
Deduct 228 from 230 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
57 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 11343.614
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
When dividing 200 by 57, we get 3 with a remainder of 29.
The next digit of our result is 3. 
Result so far: 11343.61403
Subtracting 171 from 200 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 12:
The number 57 fits into 290 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 11343.614035
If we subtract 285 from 290, 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 13:
50 divided by 57 is 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 11343.614035
Subtracting 0 from 50 leaves us 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 14:
When dividing 500 by 57, we get 8 with a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 11343.61403508
If we take 456 away from 500, we end up 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.

After the division, we end up with 11343.61403508 and a remainder of 4.4e-08.