We look at the division of 667398 by 54 
We want to divide 667398 by 54.

Let's proceed to step 1:
When dividing 6 by 54, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 54

On to step 2:
54 can be fit into 66 1 times, resulting in a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 54 from 66 and we're left with 12.
Grab the next digit (7) from the dividend, add it to 12, then carry on: 127 / 54

Step 3:
54 can be fit into 127 2 times, resulting in a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 108 from 127, we get 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 54

Let's proceed to step 4:
54 can be fit into 193 3 times, resulting in a remainder of 31.
The next digit of our result is 3. 
Result so far: 123.0
The remainder is 31 after subtracting 162 from 193.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 54

Advancing to step 5:
If we divide 319 by 54, we get 5 and a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 1235.0
Subtract 270 from 319 to get 49.
Take the next digit (8) from the dividend and append it to 49, then repeat: 498 / 54

Going ahead to step 6:
54 goes into 498 9 times with a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 12359.0
Subtract 486 from 498 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 7:
54 can be fit into 120 2 times, resulting in a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 12359.2
Subtracting 108 from 120 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
54 goes into 120 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 12359.22
Deduct 108 from 120 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 12359.22 with a balance of 0.012.