We're dividing 86447418 by 503 
We want to divide 86447418 by 503.

Moving on to step 1:
8 divided by 503 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 503

Going ahead to step 2:
86 divided by 503 is 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 503

Let's proceed to step 3:
503 can be fit into 864 1 times, resulting in a remainder of 361.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 503 from 864 and we're left with 361.
Take the next digit (4) from the dividend and append it to 361, then repeat: 3614 / 503

Let's proceed to step 4:
503 goes into 3614 7 times with a remainder of 93.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 3521 from 3614 and we're left with 93.
Take the next digit (7) from the dividend and append it to 93, then repeat: 937 / 503

Moving on to step 5:
503 can be fit into 937 1 times, resulting in a remainder of 434.
The next digit of our result is 1. 
Result so far: 171.0
Deduct 503 from 937 and we're left with 434.
Fetch the next digit (4) from the dividend, attach it to 434 and continue: 4344 / 503

Moving on to step 6:
When dividing 4344 by 503, we get 8 with a remainder of 320.
Record the quotient 8 as the next digit in the result. 
Result so far: 1718.0
Deduct 4024 from 4344 and we're left with 320.
Grab the next digit (1) from the dividend, add it to 320, then carry on: 3201 / 503

On to step 7:
503 can be fit into 3201 6 times, resulting in a remainder of 183.
The next digit of our result is 6. 
Result so far: 17186.0
If we take 3018 away from 3201, we end up with 183.
Bring next digit (8) of the dividend behind the 183 and repeat the process: 1838 / 503

Moving on to step 8:
The number 503 fits into 1838 3 times, leaving a remainder of 329.
Put 3 as the next digit of the answer. 
Result so far: 171863.0
If we subtract 1509 from 1838, we get 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

On to step 9:
The number 503 fits into 3290 6 times, leaving a remainder of 272.
The next digit of our result is 6. 
Result so far: 171863.6
Subtract 3018 from 3290 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Going ahead to step 10:
503 goes into 2720 5 times with a remainder of 205.
The next digit of our result is 5. 
Result so far: 171863.65
Subtracting 2515 from 2720 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 11:
When dividing 2050 by 503, we get 4 with a remainder of 38.
Write down 4 as next digit of the result. 
Result so far: 171863.654
Subtracting 2012 from 2050 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
When dividing 380 by 503, we get 0 with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 171863.654
If we subtract 0 from 380, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 13:
When dividing 3800 by 503, we get 7 with a remainder of 279.
The number 7 becomes the next digit in our result. 
Result so far: 171863.65407
If we subtract 3521 from 3800, we get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Advancing to step 14:
503 can be fit into 2790 5 times, resulting in a remainder of 275.
The next digit of our result is 5. 
Result so far: 171863.654075
Subtracting 2515 from 2790 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Going ahead to step 15:
503 goes into 2750 5 times with a remainder of 235.
The next digit of our result is 5. 
Result so far: 171863.6540755
The remainder is 235 after subtracting 2515 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

The final result is 171863.6540755 with a remainder of 2.35e-06.