351912 ÷ 54 
Let's see how many times 54 fits into 351912.

On to step 1:
The number 54 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 54

Going ahead to step 2:
The number 54 fits into 35 0 times, leaving a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Grab the next digit (1) from the dividend, add it to 35, then carry on: 351 / 54

Going ahead to step 3:
351 divided by 54 is 6 with a remainder of 27.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 324 from 351 leaves us with 27.
Grab the next digit (9) from the dividend, add it to 27, then carry on: 279 / 54

Moving on to step 4:
When dividing 279 by 54, we get 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
Deduct 270 from 279 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 54

Going ahead to step 5:
91 divided by 54 is 1 with a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 651.0
The remainder is 37 after subtracting 54 from 91.
Fetch the next digit (2) from the dividend, attach it to 37 and continue: 372 / 54

Going ahead to step 6:
372 divided by 54 is 6 with a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 6516.0
If we subtract 324 from 372, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 7:
480 divided by 54 is 8 with a remainder of 48.
The next digit of our result is 8. 
Result so far: 6516.8
If we take 432 away from 480, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
The number 54 fits into 480 8 times, leaving a remainder of 48.
The next digit of our result is 8. 
Result so far: 6516.88
If we take 432 away from 480, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The quotient of the division is 6516.88, and the remainder is 0.048.