Let's divide 18378518 by 409
Our goal is to divide 18378518 by 409.

On to step 1:
The number 409 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 409

Advancing to step 2:
When dividing 18 by 409, we get 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 409

Step 3:
The number 409 fits into 183 0 times, leaving a remainder of 183.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 183 to get 183.
Include the next digit (7) from the dividend after 183, then repeat: 1837 / 409

Going ahead to step 4:
When dividing 1837 by 409, we get 4 with a remainder of 201.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 1636 away from 1837, we end up with 201.
Bring next digit (8) of the dividend behind the 201 and repeat the process: 2018 / 409

Going ahead to step 5:
If we divide 2018 by 409, we get 4 and a remainder of 382.
Put 4 as the next digit of the answer. 
Result so far: 44.0
The remainder is 382 after subtracting 1636 from 2018.
Append the next digit (5) from the dividend to 382 and continue with: 3825 / 409

Advancing to step 6:
409 goes into 3825 9 times with a remainder of 144.
Record the quotient 9 as the next digit in the result. 
Result so far: 449.0
Subtract 3681 from 3825 to get 144.
Include the next digit (1) from the dividend after 144, then repeat: 1441 / 409

Going ahead to step 7:
409 can be fit into 1441 3 times, resulting in a remainder of 214.
The next digit of our result is 3. 
Result so far: 4493.0
Subtracting 1227 from 1441 leaves us with 214.
Bring next digit (8) of the dividend behind the 214 and repeat the process: 2148 / 409

Going ahead to step 8:
The number 409 fits into 2148 5 times, leaving a remainder of 103.
Write down 5 as next digit of the result. 
Result so far: 44935.0
If we take 2045 away from 2148, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

On to step 9:
409 can be fit into 1030 2 times, resulting in a remainder of 212.
The next digit of our result is 2. 
Result so far: 44935.2
The remainder is 212 after subtracting 818 from 1030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 10:
When dividing 2120 by 409, we get 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 44935.25
Subtracting 2045 from 2120 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 11:
750 divided by 409 is 1 with a remainder of 341.
The number 1 becomes the next digit in our result. 
Result so far: 44935.251
Subtracting 409 from 750 leaves us with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Going ahead to step 12:
3410 divided by 409 is 8 with a remainder of 138.
Put 8 as the next digit of the answer. 
Result so far: 44935.2518
Subtracting 3272 from 3410 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 13:
409 goes into 1380 3 times with a remainder of 153.
Record the quotient 3 as the next digit in the result. 
Result so far: 44935.25183
Subtracting 1227 from 1380 leaves us with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Moving on to step 14:
1530 divided by 409 is 3 with a remainder of 303.
Record the quotient 3 as the next digit in the result. 
Result so far: 44935.251833
If we take 1227 away from 1530, 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.

The quotient of the division is 44935.251833, and the remainder is 3.03e-05.