We look at the division of 160399 by 51 
We want to divide 160399 by 51.

Let's proceed to step 1:
When dividing 1 by 51, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 51

Going ahead to step 2:
The number 51 fits into 16 0 times, leaving a remainder of 16.
Put 0 as the next digit of the answer. 
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 / 51

Let's proceed to step 3:
The number 51 fits into 160 3 times, leaving a remainder of 7.
The next digit of our result is 3. 
Result so far: 3.0
If we take 153 away from 160, we end up with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 51

Going ahead to step 4:
51 can be fit into 73 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtract 51 from 73 to get 22.
Bring next digit (9) of the dividend behind the 22 and repeat the process: 229 / 51

Going ahead to step 5:
When dividing 229 by 51, we get 4 with a remainder of 25.
Write down 4 as next digit of the result. 
Result so far: 314.0
Deduct 204 from 229 and we're left with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 51

On to step 6:
When dividing 259 by 51, we get 5 with a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 3145.0
If we take 255 away from 259, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
51 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 3145.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
When dividing 400 by 51, we get 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 3145.07
If we take 357 away from 400, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 9:
430 divided by 51 is 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 3145.078
If we subtract 408 from 430, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 10:
220 divided by 51 is 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 3145.0784
If we subtract 204 from 220, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
When dividing 160 by 51, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 3145.07843
If we subtract 153 from 160, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 12:
If we divide 70 by 51, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 3145.078431
Subtract 51 from 70 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 13:
51 goes into 190 3 times with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 3145.0784313
If we take 153 away from 190, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 14:
51 can be fit into 370 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 3145.07843137
Subtract 357 from 370 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 3145.07843137 and a remainder of 1.3e-08.