98708421 ÷ 343 
We want to figure out the number of times 98708421 can be divided by 343.

Advancing to step 1:
9 divided by 343 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 343

Moving on to step 2:
When dividing 98 by 343, we get 0 with a remainder of 98.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 98 to get 98.
Fetch the next digit (7) from the dividend, attach it to 98 and continue: 987 / 343

On to step 3:
987 divided by 343 is 2 with a remainder of 301.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 686 away from 987, we end up with 301.
Grab the next digit (0) from the dividend, add it to 301, then carry on: 3010 / 343

Going ahead to step 4:
When dividing 3010 by 343, we get 8 with a remainder of 266.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Deduct 2744 from 3010 and we're left with 266.
Append the next digit (8) from the dividend to 266 and continue with: 2668 / 343

Let's proceed to step 5:
If we divide 2668 by 343, we get 7 and a remainder of 267.
Record the quotient 7 as the next digit in the result. 
Result so far: 287.0
Deduct 2401 from 2668 and we're left with 267.
Take the next digit (4) from the dividend and append it to 267, then repeat: 2674 / 343

Let's proceed to step 6:
343 goes into 2674 7 times with a remainder of 273.
The number 7 becomes the next digit in our result. 
Result so far: 2877.0
Subtract 2401 from 2674 to get 273.
Fetch the next digit (2) from the dividend, attach it to 273 and continue: 2732 / 343

Let's proceed to step 7:
The number 343 fits into 2732 7 times, leaving a remainder of 331.
Record the quotient 7 as the next digit in the result. 
Result so far: 28777.0
Subtracting 2401 from 2732 leaves us with 331.
Fetch the next digit (1) from the dividend, attach it to 331 and continue: 3311 / 343

Moving on to step 8:
343 can be fit into 3311 9 times, resulting in a remainder of 224.
The next digit of our result is 9. 
Result so far: 287779.0
Subtract 3087 from 3311 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 9:
2240 divided by 343 is 6 with a remainder of 182.
Use 6 as the next digit of our solution. 
Result so far: 287779.6
If we take 2058 away from 2240, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 10:
1820 divided by 343 is 5 with a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 287779.65
The remainder is 105 after subtracting 1715 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 11:
1050 divided by 343 is 3 with a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 287779.653
The remainder is 21 after subtracting 1029 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 12:
When dividing 210 by 343, we get 0 with a remainder of 210.
The next digit of our result is 0. 
Result so far: 287779.653
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 13:
The number 343 fits into 2100 6 times, leaving a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 287779.65306
The remainder is 42 after subtracting 2058 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 14:
The number 343 fits into 420 1 times, leaving a remainder of 77.
Write down 1 as next digit of the result. 
Result so far: 287779.653061
The remainder is 77 after subtracting 343 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 15:
The number 343 fits into 770 2 times, leaving a remainder of 84.
Write down 2 as next digit of the result. 
Result so far: 287779.6530612
Subtract 686 from 770 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 16:
840 divided by 343 is 2 with a remainder of 154.
Record the quotient 2 as the next digit in the result. 
Result so far: 287779.65306122
Subtracting 686 from 840 leaves us with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The final result is 287779.65306122 with a remainder of 1.54e-07.