We're dividing 21514010 by 57 
Let's see how many times 57 fits into 21514010.

Step 1:
2 divided by 57 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 57

Going ahead to step 2:
The number 57 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 57

Step 3:
The number 57 fits into 215 3 times, leaving a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 171 from 215, we get 44.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 57

On to step 4:
The number 57 fits into 441 7 times, leaving a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
The remainder is 42 after subtracting 399 from 441.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 57

Advancing to step 5:
When dividing 424 by 57, we get 7 with a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 377.0
Deduct 399 from 424 and we're left with 25.
Take the next digit (0) from the dividend and append it to 25, then repeat: 250 / 57

Advancing to step 6:
If we divide 250 by 57, we get 4 and a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 3774.0
If we take 228 away from 250, we end up with 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 57

On to step 7:
57 can be fit into 221 3 times, resulting in a remainder of 50.
The number 3 becomes the next digit in our result. 
Result so far: 37743.0
Deduct 171 from 221 and we're left with 50.
Append the next digit (0) from the dividend to 50 and continue with: 500 / 57

Advancing to step 8:
57 can be fit into 500 8 times, resulting in a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 377438.0
Subtract 456 from 500 to get 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:
57 goes into 440 7 times with a remainder of 41.
Record the quotient 7 as the next digit in the result. 
Result so far: 377438.7
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.

Going ahead to step 10:
410 divided by 57 is 7 with a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 377438.77
Subtract 399 from 410 to get 11.
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 377438.77 with a remaining 0.011.