We look at the division of 1988915 by 409 
Let's see how many times 409 fits into 1988915.

On to step 1:
When dividing 1 by 409, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 409

Advancing to step 2:
The number 409 fits into 19 0 times, leaving a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 409

Let's proceed to step 3:
409 can be fit into 198 0 times, resulting in a remainder of 198.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 198 after subtracting 0 from 198.
Include the next digit (8) from the dividend after 198, then repeat: 1988 / 409

On to step 4:
The number 409 fits into 1988 4 times, leaving a remainder of 352.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 1636 from 1988, we get 352.
Bring next digit (9) of the dividend behind the 352 and repeat the process: 3529 / 409

Let's proceed to step 5:
409 can be fit into 3529 8 times, resulting in a remainder of 257.
The next digit of our result is 8. 
Result so far: 48.0
The remainder is 257 after subtracting 3272 from 3529.
Append the next digit (1) from the dividend to 257 and continue with: 2571 / 409

Step 6:
If we divide 2571 by 409, we get 6 and a remainder of 117.
The next digit of our result is 6. 
Result so far: 486.0
If we take 2454 away from 2571, we end up with 117.
Grab the next digit (5) from the dividend, add it to 117, then carry on: 1175 / 409

Going ahead to step 7:
409 goes into 1175 2 times with a remainder of 357.
Use 2 as the next digit of our solution. 
Result so far: 4862.0
If we take 818 away from 1175, we end up with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Moving on to step 8:
If we divide 3570 by 409, we get 8 and a remainder of 298.
The number 8 becomes the next digit in our result. 
Result so far: 4862.8
Subtracting 3272 from 3570 leaves us with 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Advancing to step 9:
409 can be fit into 2980 7 times, resulting in a remainder of 117.
Use 7 as the next digit of our solution. 
Result so far: 4862.87
If we take 2863 away from 2980, we end up with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Advancing to step 10:
1170 divided by 409 is 2 with a remainder of 352.
The next digit of our result is 2. 
Result so far: 4862.872
Subtracting 818 from 1170 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 11:
When dividing 3520 by 409, we get 8 with a remainder of 248.
Write down 8 as next digit of the result. 
Result so far: 4862.8728
If we take 3272 away from 3520, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 12:
If we divide 2480 by 409, we get 6 and a remainder of 26.
The number 6 becomes the next digit in our result. 
Result so far: 4862.87286
If we take 2454 away from 2480, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 13:
409 can be fit into 260 0 times, resulting in a remainder of 260.
The next digit of our result is 0. 
Result so far: 4862.87286
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 14:
409 goes into 2600 6 times with a remainder of 146.
Write down 6 as next digit of the result. 
Result so far: 4862.8728606
Subtracting 2454 from 2600 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Going ahead to step 15:
409 goes into 1460 3 times with a remainder of 233.
The next digit of our result is 3. 
Result so far: 4862.87286063
If we take 1227 away from 1460, we end up with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

The final outcome is 4862.87286063, with a leftover of 2.33e-07.