We look at the division of 84640399 by 342 
We want to divide 84640399 by 342.

Step 1:
If we divide 8 by 342, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 342

Going ahead to step 2:
When dividing 84 by 342, we get 0 with a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Take the next digit (6) from the dividend and append it to 84, then repeat: 846 / 342

Going ahead to step 3:
846 divided by 342 is 2 with a remainder of 162.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 684 from 846 leaves us with 162.
Bring next digit (4) of the dividend behind the 162 and repeat the process: 1624 / 342

Advancing to step 4:
If we divide 1624 by 342, we get 4 and a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtract 1368 from 1624 to get 256.
Grab the next digit (0) from the dividend, add it to 256, then carry on: 2560 / 342

Going ahead to step 5:
When dividing 2560 by 342, we get 7 with a remainder of 166.
Use 7 as the next digit of our solution. 
Result so far: 247.0
If we subtract 2394 from 2560, we get 166.
Include the next digit (3) from the dividend after 166, then repeat: 1663 / 342

Going ahead to step 6:
342 can be fit into 1663 4 times, resulting in a remainder of 295.
Put 4 as the next digit of the answer. 
Result so far: 2474.0
Subtracting 1368 from 1663 leaves us with 295.
Append the next digit (9) from the dividend to 295 and continue with: 2959 / 342

Advancing to step 7:
342 can be fit into 2959 8 times, resulting in a remainder of 223.
Record the quotient 8 as the next digit in the result. 
Result so far: 24748.0
The remainder is 223 after subtracting 2736 from 2959.
Take the next digit (9) from the dividend and append it to 223, then repeat: 2239 / 342

On to step 8:
When dividing 2239 by 342, we get 6 with a remainder of 187.
Record the quotient 6 as the next digit in the result. 
Result so far: 247486.0
Subtract 2052 from 2239 to get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Let's proceed to step 9:
342 can be fit into 1870 5 times, resulting in a remainder of 160.
Use 5 as the next digit of our solution. 
Result so far: 247486.5
Subtracting 1710 from 1870 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 10:
The number 342 fits into 1600 4 times, leaving a remainder of 232.
Put 4 as the next digit of the answer. 
Result so far: 247486.54
Deduct 1368 from 1600 and we're left with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Let's proceed to step 11:
If we divide 2320 by 342, we get 6 and a remainder of 268.
Use 6 as the next digit of our solution. 
Result so far: 247486.546
Subtract 2052 from 2320 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Moving on to step 12:
342 goes into 2680 7 times with a remainder of 286.
The next digit of our result is 7. 
Result so far: 247486.5467
If we subtract 2394 from 2680, we get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 13:
If we divide 2860 by 342, we get 8 and a remainder of 124.
Use 8 as the next digit of our solution. 
Result so far: 247486.54678
If we take 2736 away from 2860, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 14:
1240 divided by 342 is 3 with a remainder of 214.
Record the quotient 3 as the next digit in the result. 
Result so far: 247486.546783
If we take 1026 away from 1240, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Moving on to step 15:
2140 divided by 342 is 6 with a remainder of 88.
The next digit of our result is 6. 
Result so far: 247486.5467836
If we subtract 2052 from 2140, 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.

Advancing to step 16:
880 divided by 342 is 2 with a remainder of 196.
Put 2 as the next digit of the answer. 
Result so far: 247486.54678362
If we take 684 away from 880, we end up with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 247486.54678362 and a remainder of 1.96e-07.