We look at the division of 86379749 by 308 
We want to figure out the number of times 86379749 can be divided by 308.

Step 1:
When dividing 8 by 308, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 308

On to step 2:
When dividing 86 by 308, we get 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Append the next digit (3) from the dividend to 86 and continue with: 863 / 308

Advancing to step 3:
863 divided by 308 is 2 with a remainder of 247.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 247 after subtracting 616 from 863.
Grab the next digit (7) from the dividend, add it to 247, then carry on: 2477 / 308

Step 4:
308 goes into 2477 8 times with a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we subtract 2464 from 2477, we get 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 308

Moving on to step 5:
The number 308 fits into 139 0 times, leaving a remainder of 139.
Record the quotient 0 as the next digit in the result. 
Result so far: 280.0
Subtract 0 from 139 to get 139.
Fetch the next digit (7) from the dividend, attach it to 139 and continue: 1397 / 308

Going ahead to step 6:
308 goes into 1397 4 times with a remainder of 165.
Record the quotient 4 as the next digit in the result. 
Result so far: 2804.0
Subtracting 1232 from 1397 leaves us with 165.
Bring next digit (4) of the dividend behind the 165 and repeat the process: 1654 / 308

Moving on to step 7:
308 can be fit into 1654 5 times, resulting in a remainder of 114.
The next digit of our result is 5. 
Result so far: 28045.0
Subtract 1540 from 1654 to get 114.
Take the next digit (9) from the dividend and append it to 114, then repeat: 1149 / 308

Advancing to step 8:
308 goes into 1149 3 times with a remainder of 225.
Put 3 as the next digit of the answer. 
Result so far: 280453.0
Deduct 924 from 1149 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Step 9:
The number 308 fits into 2250 7 times, leaving a remainder of 94.
Write down 7 as next digit of the result. 
Result so far: 280453.7
If we subtract 2156 from 2250, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 10:
The number 308 fits into 940 3 times, leaving a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 280453.73
Deduct 924 from 940 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
If we divide 160 by 308, we get 0 and a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 280453.73
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 12:
308 can be fit into 1600 5 times, resulting in a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 280453.7305
If we take 1540 away from 1600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
600 divided by 308 is 1 with a remainder of 292.
Write down 1 as next digit of the result. 
Result so far: 280453.73051
Subtract 308 from 600 to get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 14:
2920 divided by 308 is 9 with a remainder of 148.
Write down 9 as next digit of the result. 
Result so far: 280453.730519
Subtract 2772 from 2920 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 15:
308 can be fit into 1480 4 times, resulting in a remainder of 248.
The number 4 becomes the next digit in our result. 
Result so far: 280453.7305194
If we take 1232 away from 1480, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 16:
308 can be fit into 2480 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 280453.73051948
Subtracting 2464 from 2480 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 280453.73051948 with a balance of 1.6e-08.