Let's divide 21412358 by 523
Let's see how many times 523 fits into 21412358.

On to step 1:
523 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 523

Let's proceed to step 2:
523 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 523

On to step 3:
523 can be fit into 214 0 times, resulting in a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 214 to get 214.
Fetch the next digit (1) from the dividend, attach it to 214 and continue: 2141 / 523

Going ahead to step 4:
2141 divided by 523 is 4 with a remainder of 49.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 2092 away from 2141, we end up with 49.
Bring next digit (2) of the dividend behind the 49 and repeat the process: 492 / 523

Moving on to step 5:
If we divide 492 by 523, we get 0 and a remainder of 492.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Deduct 0 from 492 and we're left with 492.
Fetch the next digit (3) from the dividend, attach it to 492 and continue: 4923 / 523

Step 6:
523 goes into 4923 9 times with a remainder of 216.
The number 9 becomes the next digit in our result. 
Result so far: 409.0
Subtracting 4707 from 4923 leaves us with 216.
Fetch the next digit (5) from the dividend, attach it to 216 and continue: 2165 / 523

Going ahead to step 7:
If we divide 2165 by 523, we get 4 and a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 4094.0
Subtracting 2092 from 2165 leaves us with 73.
Append the next digit (8) from the dividend to 73 and continue with: 738 / 523

On to step 8:
523 can be fit into 738 1 times, resulting in a remainder of 215.
The number 1 becomes the next digit in our result. 
Result so far: 40941.0
The remainder is 215 after subtracting 523 from 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Let's proceed to step 9:
If we divide 2150 by 523, we get 4 and a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 40941.4
Subtract 2092 from 2150 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 10:
If we divide 580 by 523, we get 1 and a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 40941.41
If we take 523 away from 580, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 11:
If we divide 570 by 523, we get 1 and a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 40941.411
If we subtract 523 from 570, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

The final result is 40941.411 with a remainder of 0.0047.