We divide 15177173 by 409
Let's see how many times 409 fits into 15177173.

On to step 1:
409 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 409

Step 2:
409 goes into 15 0 times with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 409

Moving on to step 3:
If we divide 151 by 409, we get 0 and a remainder of 151.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 151, we get 151.
Grab the next digit (7) from the dividend, add it to 151, then carry on: 1517 / 409

Moving on to step 4:
409 can be fit into 1517 3 times, resulting in a remainder of 290.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1227 from 1517 to get 290.
Take the next digit (7) from the dividend and append it to 290, then repeat: 2907 / 409

Step 5:
409 can be fit into 2907 7 times, resulting in a remainder of 44.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
The remainder is 44 after subtracting 2863 from 2907.
Include the next digit (1) from the dividend after 44, then repeat: 441 / 409

Let's proceed to step 6:
409 can be fit into 441 1 times, resulting in a remainder of 32.
The next digit of our result is 1. 
Result so far: 371.0
Subtracting 409 from 441 leaves us with 32.
Grab the next digit (7) from the dividend, add it to 32, then carry on: 327 / 409

Moving on to step 7:
If we divide 327 by 409, we get 0 and a remainder of 327.
Use 0 as the next digit of our solution. 
Result so far: 3710.0
Subtracting 0 from 327 leaves us with 327.
Append the next digit (3) from the dividend to 327 and continue with: 3273 / 409

Moving on to step 8:
409 goes into 3273 8 times with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 37108.0
If we subtract 3272 from 3273, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
409 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 37108.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 409, we get 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 37108.0
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 37108.0, with a leftover of 0.1.