We look at the division of 86430774 by 247 
We want to divide 86430774 by 247.

Going ahead to step 1:
The number 247 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 247

Moving on to step 2:
247 can be fit into 86 0 times, resulting in a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 247

On to step 3:
247 goes into 864 3 times with a remainder of 123.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 741 from 864, we get 123.
Append the next digit (3) from the dividend to 123 and continue with: 1233 / 247

Moving on to step 4:
1233 divided by 247 is 4 with a remainder of 245.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Subtracting 988 from 1233 leaves us with 245.
Grab the next digit (0) from the dividend, add it to 245, then carry on: 2450 / 247

Advancing to step 5:
If we divide 2450 by 247, we get 9 and a remainder of 227.
Write down 9 as next digit of the result. 
Result so far: 349.0
Deduct 2223 from 2450 and we're left with 227.
Grab the next digit (7) from the dividend, add it to 227, then carry on: 2277 / 247

Advancing to step 6:
2277 divided by 247 is 9 with a remainder of 54.
Put 9 as the next digit of the answer. 
Result so far: 3499.0
Subtract 2223 from 2277 to get 54.
Grab the next digit (7) from the dividend, add it to 54, then carry on: 547 / 247

Moving on to step 7:
547 divided by 247 is 2 with a remainder of 53.
The number 2 becomes the next digit in our result. 
Result so far: 34992.0
Deduct 494 from 547 and we're left with 53.
Include the next digit (4) from the dividend after 53, then repeat: 534 / 247

On to step 8:
247 goes into 534 2 times with a remainder of 40.
The next digit of our result is 2. 
Result so far: 349922.0
Subtract 494 from 534 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
400 divided by 247 is 1 with a remainder of 153.
Write down 1 as next digit of the result. 
Result so far: 349922.1
If we subtract 247 from 400, we get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Advancing to step 10:
When dividing 1530 by 247, we get 6 with a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 349922.16
Subtracting 1482 from 1530 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 11:
The number 247 fits into 480 1 times, leaving a remainder of 233.
The next digit of our result is 1. 
Result so far: 349922.161
If we take 247 away from 480, we end up with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 12:
2330 divided by 247 is 9 with a remainder of 107.
Put 9 as the next digit of the answer. 
Result so far: 349922.1619
Subtracting 2223 from 2330 leaves us with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 13:
When dividing 1070 by 247, we get 4 with a remainder of 82.
Put 4 as the next digit of the answer. 
Result so far: 349922.16194
The remainder is 82 after subtracting 988 from 1070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 14:
247 can be fit into 820 3 times, resulting in a remainder of 79.
The next digit of our result is 3. 
Result so far: 349922.161943
The remainder is 79 after subtracting 741 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 15:
If we divide 790 by 247, we get 3 and a remainder of 49.
Record the quotient 3 as the next digit in the result. 
Result so far: 349922.1619433
The remainder is 49 after subtracting 741 from 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

The final outcome is 349922.1619433, with a leftover of 4.9e-07.