Let's divide 21185053 by 537
We're looking to find how many times 537 goes into 21185053.

Step 1:
537 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 537

On to step 2:
537 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 537

Moving on to step 3:
If we divide 211 by 537, we get 0 and a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Fetch the next digit (8) from the dividend, attach it to 211 and continue: 2118 / 537

Going ahead to step 4:
537 can be fit into 2118 3 times, resulting in a remainder of 507.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 1611 from 2118, we get 507.
Fetch the next digit (5) from the dividend, attach it to 507 and continue: 5075 / 537

On to step 5:
537 goes into 5075 9 times with a remainder of 242.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Subtract 4833 from 5075 to get 242.
Include the next digit (0) from the dividend after 242, then repeat: 2420 / 537

Advancing to step 6:
When dividing 2420 by 537, we get 4 with a remainder of 272.
Record the quotient 4 as the next digit in the result. 
Result so far: 394.0
Subtract 2148 from 2420 to get 272.
Grab the next digit (5) from the dividend, add it to 272, then carry on: 2725 / 537

On to step 7:
537 goes into 2725 5 times with a remainder of 40.
The next digit of our result is 5. 
Result so far: 3945.0
Deduct 2685 from 2725 and we're left with 40.
Bring next digit (3) of the dividend behind the 40 and repeat the process: 403 / 537

Step 8:
If we divide 403 by 537, we get 0 and a remainder of 403.
The next digit of our result is 0. 
Result so far: 39450.0
Deduct 0 from 403 and we're left with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Advancing to step 9:
If we divide 4030 by 537, we get 7 and a remainder of 271.
Record the quotient 7 as the next digit in the result. 
Result so far: 39450.7
Deduct 3759 from 4030 and we're left with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

On to step 10:
2710 divided by 537 is 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 39450.75
Subtracting 2685 from 2710 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
When dividing 250 by 537, we get 0 with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 39450.75
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 12:
If we divide 2500 by 537, we get 4 and a remainder of 352.
Record the quotient 4 as the next digit in the result. 
Result so far: 39450.7504
Subtracting 2148 from 2500 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Moving on to step 13:
3520 divided by 537 is 6 with a remainder of 298.
Record the quotient 6 as the next digit in the result. 
Result so far: 39450.75046
The remainder is 298 after subtracting 3222 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Advancing to step 14:
537 can be fit into 2980 5 times, resulting in a remainder of 295.
Record the quotient 5 as the next digit in the result. 
Result so far: 39450.750465
If we subtract 2685 from 2980, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 15:
537 can be fit into 2950 5 times, resulting in a remainder of 265.
Put 5 as the next digit of the answer. 
Result so far: 39450.7504655
If we take 2685 away from 2950, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final outcome is 39450.7504655, with a leftover of 2.65e-06.