15379965 ÷ 413 
Let's see how many times 413 fits into 15379965.

On to step 1:
1 divided by 413 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 413

Advancing to step 2:
413 can be fit into 15 0 times, resulting in a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 413

Step 3:
If we divide 153 by 413, we get 0 and a remainder of 153.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 153 and we're left with 153.
Append the next digit (7) from the dividend to 153 and continue with: 1537 / 413

Moving on to step 4:
413 can be fit into 1537 3 times, resulting in a remainder of 298.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 298 after subtracting 1239 from 1537.
Grab the next digit (9) from the dividend, add it to 298, then carry on: 2989 / 413

Advancing to step 5:
If we divide 2989 by 413, we get 7 and a remainder of 98.
The next digit of our result is 7. 
Result so far: 37.0
Subtracting 2891 from 2989 leaves us with 98.
Bring next digit (9) of the dividend behind the 98 and repeat the process: 989 / 413

Moving on to step 6:
413 goes into 989 2 times with a remainder of 163.
Record the quotient 2 as the next digit in the result. 
Result so far: 372.0
Subtracting 826 from 989 leaves us with 163.
Append the next digit (6) from the dividend to 163 and continue with: 1636 / 413

Moving on to step 7:
413 goes into 1636 3 times with a remainder of 397.
Use 3 as the next digit of our solution. 
Result so far: 3723.0
Subtracting 1239 from 1636 leaves us with 397.
Include the next digit (5) from the dividend after 397, then repeat: 3975 / 413

Advancing to step 8:
413 can be fit into 3975 9 times, resulting in a remainder of 258.
Write down 9 as next digit of the result. 
Result so far: 37239.0
Subtracting 3717 from 3975 leaves us with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Moving on to step 9:
413 can be fit into 2580 6 times, resulting in a remainder of 102.
Put 6 as the next digit of the answer. 
Result so far: 37239.6
If we subtract 2478 from 2580, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 10:
When dividing 1020 by 413, we get 2 with a remainder of 194.
Use 2 as the next digit of our solution. 
Result so far: 37239.62
If we subtract 826 from 1020, we get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 11:
413 can be fit into 1940 4 times, resulting in a remainder of 288.
Use 4 as the next digit of our solution. 
Result so far: 37239.624
The remainder is 288 after subtracting 1652 from 1940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 12:
413 can be fit into 2880 6 times, resulting in a remainder of 402.
Write down 6 as next digit of the result. 
Result so far: 37239.6246
If we subtract 2478 from 2880, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

On to step 13:
413 can be fit into 4020 9 times, resulting in a remainder of 303.
Use 9 as the next digit of our solution. 
Result so far: 37239.62469
If we take 3717 away from 4020, we end up with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Going ahead to step 14:
If we divide 3030 by 413, we get 7 and a remainder of 139.
Put 7 as the next digit of the answer. 
Result so far: 37239.624697
If we take 2891 away from 3030, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Going ahead to step 15:
1390 divided by 413 is 3 with a remainder of 151.
Use 3 as the next digit of our solution. 
Result so far: 37239.6246973
Subtracting 1239 from 1390 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Advancing to step 16:
If we divide 1510 by 413, we get 3 and a remainder of 271.
The next digit of our result is 3. 
Result so far: 37239.62469733
The remainder is 271 after subtracting 1239 from 1510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

The final outcome is 37239.62469733, with a leftover of 2.71e-07.