1605176 ÷ 399 
We want to figure out the number of times 1605176 can be divided by 399.

Advancing to step 1:
When dividing 1 by 399, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 399

Moving on to step 2:
When dividing 16 by 399, we get 0 with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 399

Moving on to step 3:
If we divide 160 by 399, we get 0 and a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 160 and we're left with 160.
Grab the next digit (5) from the dividend, add it to 160, then carry on: 1605 / 399

Going ahead to step 4:
The number 399 fits into 1605 4 times, leaving a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 1596 from 1605 and we're left with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 399

Step 5:
When dividing 91 by 399, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtract 0 from 91 to get 91.
Bring next digit (7) of the dividend behind the 91 and repeat the process: 917 / 399

On to step 6:
399 can be fit into 917 2 times, resulting in a remainder of 119.
Record the quotient 2 as the next digit in the result. 
Result so far: 402.0
The remainder is 119 after subtracting 798 from 917.
Append the next digit (6) from the dividend to 119 and continue with: 1196 / 399

Step 7:
399 can be fit into 1196 2 times, resulting in a remainder of 398.
The number 2 becomes the next digit in our result. 
Result so far: 4022.0
If we take 798 away from 1196, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Advancing to step 8:
If we divide 3980 by 399, we get 9 and a remainder of 389.
Use 9 as the next digit of our solution. 
Result so far: 4022.9
If we subtract 3591 from 3980, we get 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

On to step 9:
The number 399 fits into 3890 9 times, leaving a remainder of 299.
Write down 9 as next digit of the result. 
Result so far: 4022.99
Deduct 3591 from 3890 and we're left with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Our division results in 4022.99 with a remaining 0.299.