We look at the division of 21586153 by 540 
Let's see how many times 540 fits into 21586153.

Advancing to step 1:
If we divide 2 by 540, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 540

Moving on to step 2:
540 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 540

Moving on to step 3:
If we divide 215 by 540, we get 0 and a remainder of 215.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Bring next digit (8) of the dividend behind the 215 and repeat the process: 2158 / 540

Moving on to step 4:
When dividing 2158 by 540, we get 3 with a remainder of 538.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 1620 from 2158 to get 538.
Grab the next digit (6) from the dividend, add it to 538, then carry on: 5386 / 540

On to step 5:
5386 divided by 540 is 9 with a remainder of 526.
Use 9 as the next digit of our solution. 
Result so far: 39.0
The remainder is 526 after subtracting 4860 from 5386.
Fetch the next digit (1) from the dividend, attach it to 526 and continue: 5261 / 540

On to step 6:
If we divide 5261 by 540, we get 9 and a remainder of 401.
Use 9 as the next digit of our solution. 
Result so far: 399.0
If we take 4860 away from 5261, we end up with 401.
Bring next digit (5) of the dividend behind the 401 and repeat the process: 4015 / 540

Going ahead to step 7:
When dividing 4015 by 540, we get 7 with a remainder of 235.
The number 7 becomes the next digit in our result. 
Result so far: 3997.0
If we take 3780 away from 4015, we end up with 235.
Grab the next digit (3) from the dividend, add it to 235, then carry on: 2353 / 540

Advancing to step 8:
2353 divided by 540 is 4 with a remainder of 193.
Write down 4 as next digit of the result. 
Result so far: 39974.0
Subtract 2160 from 2353 to get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Advancing to step 9:
The number 540 fits into 1930 3 times, leaving a remainder of 310.
The number 3 becomes the next digit in our result. 
Result so far: 39974.3
If we subtract 1620 from 1930, we get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 10:
3100 divided by 540 is 5 with a remainder of 400.
The next digit of our result is 5. 
Result so far: 39974.35
Subtract 2700 from 3100 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 11:
When dividing 4000 by 540, we get 7 with a remainder of 220.
Write down 7 as next digit of the result. 
Result so far: 39974.357
Subtracting 3780 from 4000 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 12:
2200 divided by 540 is 4 with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 39974.3574
Deduct 2160 from 2200 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 13:
540 goes into 400 0 times with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 39974.3574
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 14:
540 goes into 4000 7 times with a remainder of 220.
Write down 7 as next digit of the result. 
Result so far: 39974.357407
The remainder is 220 after subtracting 3780 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 15:
540 goes into 2200 4 times with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 39974.3574074
If we subtract 2160 from 2200, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 16:
400 divided by 540 is 0 with a remainder of 400.
The next digit of our result is 0. 
Result so far: 39974.3574074
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 39974.3574074, with a leftover of 4e-07.