391951 ÷ 98 
We're looking to find how many times 98 goes into 391951.

Step 1:
If we divide 3 by 98, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 98

Step 2:
98 can be fit into 39 0 times, resulting in a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 98

Moving on to step 3:
The number 98 fits into 391 3 times, leaving a remainder of 97.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 294 from 391 to get 97.
Take the next digit (9) from the dividend and append it to 97, then repeat: 979 / 98

Going ahead to step 4:
98 goes into 979 9 times with a remainder of 97.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we subtract 882 from 979, we get 97.
Bring next digit (5) of the dividend behind the 97 and repeat the process: 975 / 98

Step 5:
When dividing 975 by 98, we get 9 with a remainder of 93.
Record the quotient 9 as the next digit in the result. 
Result so far: 399.0
Deduct 882 from 975 and we're left with 93.
Bring next digit (1) of the dividend behind the 93 and repeat the process: 931 / 98

Advancing to step 6:
If we divide 931 by 98, we get 9 and a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 3999.0
If we subtract 882 from 931, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 7:
The number 98 fits into 490 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3999.5
Subtracting 490 from 490 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
The number 98 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3999.5
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.

Moving on to step 9:
The number 98 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3999.5
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.

Our division results in 3999.5 with a remaining 0.0.