We're dividing 391254 by 98 
We want to figure out the number of times 391254 can be divided by 98.

Going ahead to step 1:
The number 98 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 98

Going ahead to step 2:
If we divide 39 by 98, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 98

Going ahead to step 3:
When dividing 391 by 98, we get 3 with a remainder of 97.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 294 from 391 leaves us with 97.
Include the next digit (2) from the dividend after 97, then repeat: 972 / 98

On to step 4:
The number 98 fits into 972 9 times, leaving a remainder of 90.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Subtract 882 from 972 to get 90.
Grab the next digit (5) from the dividend, add it to 90, then carry on: 905 / 98

On to step 5:
98 can be fit into 905 9 times, resulting in a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 399.0
Subtract 882 from 905 to get 23.
Grab the next digit (4) from the dividend, add it to 23, then carry on: 234 / 98

On to step 6:
98 can be fit into 234 2 times, resulting in a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 3992.0
The remainder is 38 after subtracting 196 from 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 7:
When dividing 380 by 98, we get 3 with a remainder of 86.
Record the quotient 3 as the next digit in the result. 
Result so far: 3992.3
Subtracting 294 from 380 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 8:
When dividing 860 by 98, we get 8 with a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 3992.38
Subtracting 784 from 860 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 9:
98 goes into 760 7 times with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 3992.387
The remainder is 74 after subtracting 686 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 10:
When dividing 740 by 98, we get 7 with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 3992.3877
The remainder is 54 after subtracting 686 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 3992.3877 and a remainder of 0.00054.