We look at the division of 54628380 by 409 
We want to divide 54628380 by 409.

On to step 1:
When dividing 5 by 409, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 409

On to step 2:
409 can be fit into 54 0 times, resulting in a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Grab the next digit (6) from the dividend, add it to 54, then carry on: 546 / 409

Moving on to step 3:
If we divide 546 by 409, we get 1 and a remainder of 137.
The next digit of our result is 1. 
Result so far: 1.0
If we take 409 away from 546, we end up with 137.
Bring next digit (2) of the dividend behind the 137 and repeat the process: 1372 / 409

Step 4:
The number 409 fits into 1372 3 times, leaving a remainder of 145.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 1227 from 1372 leaves us with 145.
Append the next digit (8) from the dividend to 145 and continue with: 1458 / 409

On to step 5:
If we divide 1458 by 409, we get 3 and a remainder of 231.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
If we subtract 1227 from 1458, we get 231.
Append the next digit (3) from the dividend to 231 and continue with: 2313 / 409

Going ahead to step 6:
409 can be fit into 2313 5 times, resulting in a remainder of 268.
Write down 5 as next digit of the result. 
Result so far: 1335.0
Subtract 2045 from 2313 to get 268.
Bring next digit (8) of the dividend behind the 268 and repeat the process: 2688 / 409

Going ahead to step 7:
409 can be fit into 2688 6 times, resulting in a remainder of 234.
Write down 6 as next digit of the result. 
Result so far: 13356.0
Subtract 2454 from 2688 to get 234.
Append the next digit (0) from the dividend to 234 and continue with: 2340 / 409

Going ahead to step 8:
409 goes into 2340 5 times with a remainder of 295.
Use 5 as the next digit of our solution. 
Result so far: 133565.0
Subtracting 2045 from 2340 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Let's proceed to step 9:
The number 409 fits into 2950 7 times, leaving a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 133565.7
If we subtract 2863 from 2950, we get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
409 can be fit into 870 2 times, resulting in a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 133565.72
The remainder is 52 after subtracting 818 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 11:
520 divided by 409 is 1 with a remainder of 111.
The number 1 becomes the next digit in our result. 
Result so far: 133565.721
The remainder is 111 after subtracting 409 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Going ahead to step 12:
1110 divided by 409 is 2 with a remainder of 292.
Put 2 as the next digit of the answer. 
Result so far: 133565.7212
Subtract 818 from 1110 to get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 13:
409 goes into 2920 7 times with a remainder of 57.
The next digit of our result is 7. 
Result so far: 133565.72127
The remainder is 57 after subtracting 2863 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 14:
If we divide 570 by 409, we get 1 and a remainder of 161.
The number 1 becomes the next digit in our result. 
Result so far: 133565.721271
The remainder is 161 after subtracting 409 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Moving on to step 15:
The number 409 fits into 1610 3 times, leaving a remainder of 383.
Use 3 as the next digit of our solution. 
Result so far: 133565.7212713
The remainder is 383 after subtracting 1227 from 1610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

On to step 16:
409 can be fit into 3830 9 times, resulting in a remainder of 149.
Write down 9 as next digit of the result. 
Result so far: 133565.72127139
Deduct 3681 from 3830 and we're left with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Our division results in 133565.72127139 with a remaining 1.49e-07.