We're dividing 980400 by 42 
We want to figure out the number of times 980400 can be divided by 42.

Going ahead to step 1:
When dividing 9 by 42, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 42

Going ahead to step 2:
If we divide 98 by 42, we get 2 and a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 84 from 98 to get 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 42

Step 3:
140 divided by 42 is 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 23.0
Subtracting 126 from 140 leaves us with 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 42

Advancing to step 4:
The number 42 fits into 144 3 times, leaving a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 233.0
If we take 126 away from 144, we end up with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 42

Advancing to step 5:
42 can be fit into 180 4 times, resulting in a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 2334.0
Subtract 168 from 180 to get 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 42

Let's proceed to step 6:
120 divided by 42 is 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 23342.0
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 7:
The number 42 fits into 360 8 times, leaving a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 23342.8
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
240 divided by 42 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 23342.85
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 23342.857
Deduct 294 from 300 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
42 goes into 60 1 times with a remainder of 18.
The next digit of our result is 1. 
Result so far: 23342.8571
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
42 can be fit into 180 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 23342.85714
Subtract 168 from 180 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.

Moving on to step 12:
The number 42 fits into 120 2 times, leaving a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 23342.857142
Subtracting 84 from 120 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 13:
If we divide 360 by 42, we get 8 and a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 23342.8571428
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 14:
The number 42 fits into 240 5 times, leaving a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 23342.85714285
Deduct 210 from 240 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 23342.85714285 and a remainder of 3e-08.