We're dividing 51148443 by 306 
Our goal is to divide 51148443 by 306.

On to step 1:
When dividing 5 by 306, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 306

On to step 2:
The number 306 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Include the next digit (1) from the dividend after 51, then repeat: 511 / 306

Advancing to step 3:
306 goes into 511 1 times with a remainder of 205.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 306 from 511 and we're left with 205.
Take the next digit (4) from the dividend and append it to 205, then repeat: 2054 / 306

Going ahead to step 4:
2054 divided by 306 is 6 with a remainder of 218.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 1836 away from 2054, we end up with 218.
Append the next digit (8) from the dividend to 218 and continue with: 2188 / 306

Let's proceed to step 5:
306 can be fit into 2188 7 times, resulting in a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 167.0
Subtract 2142 from 2188 to get 46.
Grab the next digit (4) from the dividend, add it to 46, then carry on: 464 / 306

Let's proceed to step 6:
306 can be fit into 464 1 times, resulting in a remainder of 158.
Record the quotient 1 as the next digit in the result. 
Result so far: 1671.0
Deduct 306 from 464 and we're left with 158.
Append the next digit (4) from the dividend to 158 and continue with: 1584 / 306

On to step 7:
306 can be fit into 1584 5 times, resulting in a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 16715.0
The remainder is 54 after subtracting 1530 from 1584.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 306

Let's proceed to step 8:
543 divided by 306 is 1 with a remainder of 237.
Write down 1 as next digit of the result. 
Result so far: 167151.0
Subtract 306 from 543 to get 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Going ahead to step 9:
The number 306 fits into 2370 7 times, leaving a remainder of 228.
The number 7 becomes the next digit in our result. 
Result so far: 167151.7
Deduct 2142 from 2370 and we're left with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 10:
When dividing 2280 by 306, we get 7 with a remainder of 138.
The next digit of our result is 7. 
Result so far: 167151.77
Deduct 2142 from 2280 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final outcome is 167151.77, with a leftover of 0.138.