We look at the division of 21512254 by 362 
We want to figure out the number of times 21512254 can be divided by 362.

On to step 1:
If we divide 2 by 362, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 362

Moving on to step 2:
362 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 362

Let's proceed to step 3:
If we divide 215 by 362, we get 0 and a remainder of 215.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 215 leaves us with 215.
Fetch the next digit (1) from the dividend, attach it to 215 and continue: 2151 / 362

On to step 4:
362 can be fit into 2151 5 times, resulting in a remainder of 341.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 341 after subtracting 1810 from 2151.
Include the next digit (2) from the dividend after 341, then repeat: 3412 / 362

Let's proceed to step 5:
362 goes into 3412 9 times with a remainder of 154.
The next digit of our result is 9. 
Result so far: 59.0
The remainder is 154 after subtracting 3258 from 3412.
Grab the next digit (2) from the dividend, add it to 154, then carry on: 1542 / 362

Moving on to step 6:
The number 362 fits into 1542 4 times, leaving a remainder of 94.
Record the quotient 4 as the next digit in the result. 
Result so far: 594.0
Subtract 1448 from 1542 to get 94.
Grab the next digit (5) from the dividend, add it to 94, then carry on: 945 / 362

Going ahead to step 7:
When dividing 945 by 362, we get 2 with a remainder of 221.
Use 2 as the next digit of our solution. 
Result so far: 5942.0
If we subtract 724 from 945, we get 221.
Append the next digit (4) from the dividend to 221 and continue with: 2214 / 362

Going ahead to step 8:
362 goes into 2214 6 times with a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 59426.0
If we subtract 2172 from 2214, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
When dividing 420 by 362, we get 1 with a remainder of 58.
The next digit of our result is 1. 
Result so far: 59426.1
Subtracting 362 from 420 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 10:
The number 362 fits into 580 1 times, leaving a remainder of 218.
The number 1 becomes the next digit in our result. 
Result so far: 59426.11
If we take 362 away from 580, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

In conclusion, the division gives 59426.11 with a balance of 0.218.