86570404 divided by 308 
Let's see how many times 308 fits into 86570404.

Moving on to step 1:
308 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 308

On to step 2:
86 divided by 308 is 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Include the next digit (5) from the dividend after 86, then repeat: 865 / 308

On to step 3:
308 goes into 865 2 times with a remainder of 249.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 616 from 865 and we're left with 249.
Append the next digit (7) from the dividend to 249 and continue with: 2497 / 308

On to step 4:
308 can be fit into 2497 8 times, resulting in a remainder of 33.
Put 8 as the next digit of the answer. 
Result so far: 28.0
The remainder is 33 after subtracting 2464 from 2497.
Append the next digit (0) from the dividend to 33 and continue with: 330 / 308

Going ahead to step 5:
The number 308 fits into 330 1 times, leaving a remainder of 22.
The next digit of our result is 1. 
Result so far: 281.0
Subtracting 308 from 330 leaves us with 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 308

Advancing to step 6:
308 can be fit into 224 0 times, resulting in a remainder of 224.
Put 0 as the next digit of the answer. 
Result so far: 2810.0
The remainder is 224 after subtracting 0 from 224.
Append the next digit (0) from the dividend to 224 and continue with: 2240 / 308

Step 7:
If we divide 2240 by 308, we get 7 and a remainder of 84.
The number 7 becomes the next digit in our result. 
Result so far: 28107.0
Deduct 2156 from 2240 and we're left with 84.
Take the next digit (4) from the dividend and append it to 84, then repeat: 844 / 308

Let's proceed to step 8:
If we divide 844 by 308, we get 2 and a remainder of 228.
Use 2 as the next digit of our solution. 
Result so far: 281072.0
Deduct 616 from 844 and we're left with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 9:
2280 divided by 308 is 7 with a remainder of 124.
Write down 7 as next digit of the result. 
Result so far: 281072.7
If we subtract 2156 from 2280, we get 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 10:
308 can be fit into 1240 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 281072.74
Subtract 1232 from 1240 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
If we divide 80 by 308, we get 0 and a remainder of 80.
The next digit of our result is 0. 
Result so far: 281072.74
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
308 goes into 800 2 times with a remainder of 184.
Write down 2 as next digit of the result. 
Result so far: 281072.7402
Subtract 616 from 800 to get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 13:
308 goes into 1840 5 times with a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 281072.74025
Deduct 1540 from 1840 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 14:
3000 divided by 308 is 9 with a remainder of 228.
Put 9 as the next digit of the answer. 
Result so far: 281072.740259
Subtract 2772 from 3000 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 15:
2280 divided by 308 is 7 with a remainder of 124.
Write down 7 as next digit of the result. 
Result so far: 281072.7402597
The remainder is 124 after subtracting 2156 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 16:
308 can be fit into 1240 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 281072.74025974
Subtract 1232 from 1240 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 281072.74025974 with a balance of 8e-09.