We're dividing 28503285 by 213 
We want to figure out the number of times 28503285 can be divided by 213.

Step 1:
The number 213 fits into 2 0 times, leaving 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.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 213

Advancing to step 2:
When dividing 28 by 213, we get 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 213

Advancing to step 3:
213 goes into 285 1 times with a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 213 from 285 to get 72.
Append the next digit (0) from the dividend to 72 and continue with: 720 / 213

On to step 4:
The number 213 fits into 720 3 times, leaving a remainder of 81.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 639 from 720 leaves us with 81.
Take the next digit (3) from the dividend and append it to 81, then repeat: 813 / 213

On to step 5:
213 goes into 813 3 times with a remainder of 174.
Write down 3 as next digit of the result. 
Result so far: 133.0
Subtract 639 from 813 to get 174.
Include the next digit (2) from the dividend after 174, then repeat: 1742 / 213

On to step 6:
213 goes into 1742 8 times with a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 1338.0
The remainder is 38 after subtracting 1704 from 1742.
Grab the next digit (8) from the dividend, add it to 38, then carry on: 388 / 213

On to step 7:
The number 213 fits into 388 1 times, leaving a remainder of 175.
Record the quotient 1 as the next digit in the result. 
Result so far: 13381.0
Subtract 213 from 388 to get 175.
Take the next digit (5) from the dividend and append it to 175, then repeat: 1755 / 213

Let's proceed to step 8:
213 can be fit into 1755 8 times, resulting in a remainder of 51.
The number 8 becomes the next digit in our result. 
Result so far: 133818.0
Deduct 1704 from 1755 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 9:
If we divide 510 by 213, we get 2 and a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 133818.2
The remainder is 84 after subtracting 426 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 10:
213 goes into 840 3 times with a remainder of 201.
The number 3 becomes the next digit in our result. 
Result so far: 133818.23
Subtract 639 from 840 to get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Let's proceed to step 11:
If we divide 2010 by 213, we get 9 and a remainder of 93.
The number 9 becomes the next digit in our result. 
Result so far: 133818.239
If we subtract 1917 from 2010, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 12:
213 can be fit into 930 4 times, resulting in a remainder of 78.
Use 4 as the next digit of our solution. 
Result so far: 133818.2394
Deduct 852 from 930 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
The number 213 fits into 780 3 times, leaving a remainder of 141.
Record the quotient 3 as the next digit in the result. 
Result so far: 133818.23943
Subtract 639 from 780 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Going ahead to step 14:
When dividing 1410 by 213, we get 6 with a remainder of 132.
The number 6 becomes the next digit in our result. 
Result so far: 133818.239436
Subtract 1278 from 1410 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 15:
213 can be fit into 1320 6 times, resulting in a remainder of 42.
The next digit of our result is 6. 
Result so far: 133818.2394366
Subtracting 1278 from 1320 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final result is 133818.2394366 with a remainder of 4.2e-07.