We look at the division of 1606400 by 408 
Our goal is to divide 1606400 by 408.

Let's proceed to step 1:
The number 408 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 408

Step 2:
408 can be fit into 16 0 times, resulting in a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 408

Advancing to step 3:
If we divide 160 by 408, we get 0 and a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 160 leaves us with 160.
Append the next digit (6) from the dividend to 160 and continue with: 1606 / 408

Advancing to step 4:
408 goes into 1606 3 times with a remainder of 382.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 1224 from 1606 to get 382.
Grab the next digit (4) from the dividend, add it to 382, then carry on: 3824 / 408

On to step 5:
The number 408 fits into 3824 9 times, leaving a remainder of 152.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 3672 from 3824, we get 152.
Bring next digit (0) of the dividend behind the 152 and repeat the process: 1520 / 408

On to step 6:
1520 divided by 408 is 3 with a remainder of 296.
Record the quotient 3 as the next digit in the result. 
Result so far: 393.0
If we subtract 1224 from 1520, we get 296.
Append the next digit (0) from the dividend to 296 and continue with: 2960 / 408

Let's proceed to step 7:
408 can be fit into 2960 7 times, resulting in a remainder of 104.
The number 7 becomes the next digit in our result. 
Result so far: 3937.0
The remainder is 104 after subtracting 2856 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 8:
When dividing 1040 by 408, we get 2 with a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 3937.2
If we subtract 816 from 1040, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 9:
408 goes into 2240 5 times with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 3937.25
Deduct 2040 from 2240 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 10:
408 can be fit into 2000 4 times, resulting in a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 3937.254
Subtracting 1632 from 2000 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 11:
If we divide 3680 by 408, we get 9 and a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 3937.2549
Deduct 3672 from 3680 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
408 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 3937.2549
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
If we divide 800 by 408, we get 1 and a remainder of 392.
The next digit of our result is 1. 
Result so far: 3937.254901
Subtract 408 from 800 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Let's proceed to step 14:
The number 408 fits into 3920 9 times, leaving a remainder of 248.
The number 9 becomes the next digit in our result. 
Result so far: 3937.2549019
Subtracting 3672 from 3920 leaves us 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.

Step 15:
2480 divided by 408 is 6 with a remainder of 32.
The next digit of our result is 6. 
Result so far: 3937.25490196
If we take 2448 away from 2480, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 3937.25490196 with a remainder of 3.2e-08.