We look at the division of 390407 by 98 
Our goal is to divide 390407 by 98.

Moving on to step 1:
3 divided by 98 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 98

Advancing to step 2:
39 divided by 98 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Append the next digit (0) from the dividend to 39 and continue with: 390 / 98

Advancing to step 3:
The number 98 fits into 390 3 times, leaving a remainder of 96.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 294 from 390 and we're left with 96.
Append the next digit (4) from the dividend to 96 and continue with: 964 / 98

Going ahead to step 4:
The number 98 fits into 964 9 times, leaving a remainder of 82.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Deduct 882 from 964 and we're left with 82.
Bring next digit (0) of the dividend behind the 82 and repeat the process: 820 / 98

On to step 5:
If we divide 820 by 98, we get 8 and a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 398.0
Deduct 784 from 820 and we're left with 36.
Grab the next digit (7) from the dividend, add it to 36, then carry on: 367 / 98

Advancing to step 6:
98 can be fit into 367 3 times, resulting in a remainder of 73.
Record the quotient 3 as the next digit in the result. 
Result so far: 3983.0
The remainder is 73 after subtracting 294 from 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
98 can be fit into 730 7 times, resulting in a remainder of 44.
Put 7 as the next digit of the answer. 
Result so far: 3983.7
Subtracting 686 from 730 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
The number 98 fits into 440 4 times, leaving a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 3983.74
If we take 392 away from 440, 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.

Step 9:
98 can be fit into 480 4 times, resulting in a remainder of 88.
Record the quotient 4 as the next digit in the result. 
Result so far: 3983.744
If we subtract 392 from 480, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

The quotient of the division is 3983.744, and the remainder is 0.0088.