We look at the division of 21503814 by 186 
We want to figure out the number of times 21503814 can be divided by 186.

Moving on to step 1:
If we divide 2 by 186, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 186

Moving on to step 2:
186 can be fit into 21 0 times, resulting in a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 186

Let's proceed to step 3:
If we divide 215 by 186, we get 1 and a remainder of 29.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 29 after subtracting 186 from 215.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 186

Let's proceed to step 4:
290 divided by 186 is 1 with a remainder of 104.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 186 from 290, we get 104.
Fetch the next digit (3) from the dividend, attach it to 104 and continue: 1043 / 186

Going ahead to step 5:
186 goes into 1043 5 times with a remainder of 113.
Put 5 as the next digit of the answer. 
Result so far: 115.0
The remainder is 113 after subtracting 930 from 1043.
Bring next digit (8) of the dividend behind the 113 and repeat the process: 1138 / 186

Moving on to step 6:
If we divide 1138 by 186, we get 6 and a remainder of 22.
The next digit of our result is 6. 
Result so far: 1156.0
If we take 1116 away from 1138, we end up with 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 186

Let's proceed to step 7:
The number 186 fits into 221 1 times, leaving a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 11561.0
The remainder is 35 after subtracting 186 from 221.
Include the next digit (4) from the dividend after 35, then repeat: 354 / 186

Moving on to step 8:
186 goes into 354 1 times with a remainder of 168.
The number 1 becomes the next digit in our result. 
Result so far: 115611.0
Subtracting 186 from 354 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 9:
The number 186 fits into 1680 9 times, leaving a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 115611.9
If we subtract 1674 from 1680, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
60 divided by 186 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 115611.9
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
600 divided by 186 is 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 115611.903
Subtracting 558 from 600 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.

Let's proceed to step 12:
186 can be fit into 420 2 times, resulting in a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 115611.9032
Deduct 372 from 420 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 13:
The number 186 fits into 480 2 times, leaving a remainder of 108.
Write down 2 as next digit of the result. 
Result so far: 115611.90322
If we subtract 372 from 480, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final outcome is 115611.90322, with a leftover of 0.000108.