We look at the division of 345486 by 48 
Let's see how many times 48 fits into 345486.

Advancing to step 1:
The number 48 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 48

On to step 2:
48 can be fit into 34 0 times, resulting in a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 48

Moving on to step 3:
345 divided by 48 is 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 336 from 345 and we're left with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 48

Advancing to step 4:
48 can be fit into 94 1 times, resulting in a remainder of 46.
Write down 1 as next digit of the result. 
Result so far: 71.0
The remainder is 46 after subtracting 48 from 94.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 48

Going ahead to step 5:
48 goes into 468 9 times with a remainder of 36.
Put 9 as the next digit of the answer. 
Result so far: 719.0
Deduct 432 from 468 and we're left with 36.
Grab the next digit (6) from the dividend, add it to 36, then carry on: 366 / 48

Let's proceed to step 6:
48 can be fit into 366 7 times, resulting in a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 7197.0
Subtract 336 from 366 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 7:
48 goes into 300 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 7197.6
Subtract 288 from 300 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
When dividing 120 by 48, we get 2 with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 7197.62
If we take 96 away from 120, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
The number 48 fits into 240 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 7197.625
The remainder is 0 after subtracting 240 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
If we divide 0 by 48, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 7197.625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
48 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7197.625
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 7197.625 with a remaining 0.0.