We look at the division of 15364221 by 887 
We're looking to find how many times 887 goes into 15364221.

Going ahead to step 1:
1 divided by 887 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 887

Let's proceed to step 2:
If we divide 15 by 887, we get 0 and a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 887

Advancing to step 3:
The number 887 fits into 153 0 times, leaving a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Grab the next digit (6) from the dividend, add it to 153, then carry on: 1536 / 887

Step 4:
When dividing 1536 by 887, we get 1 with a remainder of 649.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 887 from 1536, we get 649.
Grab the next digit (4) from the dividend, add it to 649, then carry on: 6494 / 887

Let's proceed to step 5:
887 goes into 6494 7 times with a remainder of 285.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Subtract 6209 from 6494 to get 285.
Bring next digit (2) of the dividend behind the 285 and repeat the process: 2852 / 887

Moving on to step 6:
If we divide 2852 by 887, we get 3 and a remainder of 191.
Put 3 as the next digit of the answer. 
Result so far: 173.0
Subtract 2661 from 2852 to get 191.
Take the next digit (2) from the dividend and append it to 191, then repeat: 1912 / 887

Step 7:
887 can be fit into 1912 2 times, resulting in a remainder of 138.
Use 2 as the next digit of our solution. 
Result so far: 1732.0
Deduct 1774 from 1912 and we're left with 138.
Fetch the next digit (1) from the dividend, attach it to 138 and continue: 1381 / 887

Advancing to step 8:
1381 divided by 887 is 1 with a remainder of 494.
Put 1 as the next digit of the answer. 
Result so far: 17321.0
Deduct 887 from 1381 and we're left with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

On to step 9:
887 goes into 4940 5 times with a remainder of 505.
The next digit of our result is 5. 
Result so far: 17321.5
Subtracting 4435 from 4940 leaves us with 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Moving on to step 10:
887 can be fit into 5050 5 times, resulting in a remainder of 615.
Write down 5 as next digit of the result. 
Result so far: 17321.55
Subtracting 4435 from 5050 leaves us with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Our division results in 17321.55 with a remaining 0.615.