Let's divide 21465310 by 537
Let's see how many times 537 fits into 21465310.

On to step 1:
537 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 537

Moving on to step 2:
21 divided by 537 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 537

Let's proceed to step 3:
If we divide 214 by 537, we get 0 and a remainder of 214.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 214, we get 214.
Grab the next digit (6) from the dividend, add it to 214, then carry on: 2146 / 537

Moving on to step 4:
If we divide 2146 by 537, we get 3 and a remainder of 535.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 1611 from 2146 and we're left with 535.
Fetch the next digit (5) from the dividend, attach it to 535 and continue: 5355 / 537

Let's proceed to step 5:
537 goes into 5355 9 times with a remainder of 522.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 4833 from 5355, we get 522.
Fetch the next digit (3) from the dividend, attach it to 522 and continue: 5223 / 537

Advancing to step 6:
537 can be fit into 5223 9 times, resulting in a remainder of 390.
Put 9 as the next digit of the answer. 
Result so far: 399.0
Subtracting 4833 from 5223 leaves us with 390.
Bring next digit (1) of the dividend behind the 390 and repeat the process: 3901 / 537

Going ahead to step 7:
If we divide 3901 by 537, we get 7 and a remainder of 142.
The number 7 becomes the next digit in our result. 
Result so far: 3997.0
Subtracting 3759 from 3901 leaves us with 142.
Append the next digit (0) from the dividend to 142 and continue with: 1420 / 537

Moving on to step 8:
The number 537 fits into 1420 2 times, leaving a remainder of 346.
Record the quotient 2 as the next digit in the result. 
Result so far: 39972.0
Deduct 1074 from 1420 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Moving on to step 9:
537 goes into 3460 6 times with a remainder of 238.
The number 6 becomes the next digit in our result. 
Result so far: 39972.6
Subtract 3222 from 3460 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 10:
2380 divided by 537 is 4 with a remainder of 232.
The number 4 becomes the next digit in our result. 
Result so far: 39972.64
Subtracting 2148 from 2380 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 11:
537 goes into 2320 4 times with a remainder of 172.
The next digit of our result is 4. 
Result so far: 39972.644
Subtracting 2148 from 2320 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

In conclusion, the division gives 39972.644 with a balance of 0.0172.