12278145 ÷ 983 
We want to divide 12278145 by 983.

Let's proceed to step 1:
983 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 983

Advancing to step 2:
The number 983 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 983

Let's proceed to step 3:
If we divide 122 by 983, we get 0 and a remainder of 122.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 122, we get 122.
Bring next digit (7) of the dividend behind the 122 and repeat the process: 1227 / 983

Advancing to step 4:
1227 divided by 983 is 1 with a remainder of 244.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 983 away from 1227, we end up with 244.
Take the next digit (8) from the dividend and append it to 244, then repeat: 2448 / 983

On to step 5:
2448 divided by 983 is 2 with a remainder of 482.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1966 from 2448 leaves us with 482.
Include the next digit (1) from the dividend after 482, then repeat: 4821 / 983

Moving on to step 6:
If we divide 4821 by 983, we get 4 and a remainder of 889.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
Deduct 3932 from 4821 and we're left with 889.
Take the next digit (4) from the dividend and append it to 889, then repeat: 8894 / 983

Going ahead to step 7:
If we divide 8894 by 983, we get 9 and a remainder of 47.
The next digit of our result is 9. 
Result so far: 1249.0
Subtracting 8847 from 8894 leaves us with 47.
Fetch the next digit (5) from the dividend, attach it to 47 and continue: 475 / 983

Going ahead to step 8:
The number 983 fits into 475 0 times, leaving a remainder of 475.
Record the quotient 0 as the next digit in the result. 
Result so far: 12490.0
The remainder is 475 after subtracting 0 from 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Let's proceed to step 9:
983 can be fit into 4750 4 times, resulting in a remainder of 818.
Record the quotient 4 as the next digit in the result. 
Result so far: 12490.4
If we subtract 3932 from 4750, we get 818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8180, and continue the process.

Step 10:
983 can be fit into 8180 8 times, resulting in a remainder of 316.
Use 8 as the next digit of our solution. 
Result so far: 12490.48
Deduct 7864 from 8180 and we're left with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 11:
3160 divided by 983 is 3 with a remainder of 211.
The next digit of our result is 3. 
Result so far: 12490.483
The remainder is 211 after subtracting 2949 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 12:
If we divide 2110 by 983, we get 2 and a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 12490.4832
The remainder is 144 after subtracting 1966 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 13:
983 can be fit into 1440 1 times, resulting in a remainder of 457.
Write down 1 as next digit of the result. 
Result so far: 12490.48321
If we subtract 983 from 1440, we get 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

On to step 14:
The number 983 fits into 4570 4 times, leaving a remainder of 638.
Use 4 as the next digit of our solution. 
Result so far: 12490.483214
Deduct 3932 from 4570 and we're left with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Step 15:
The number 983 fits into 6380 6 times, leaving a remainder of 482.
Put 6 as the next digit of the answer. 
Result so far: 12490.4832146
The remainder is 482 after subtracting 5898 from 6380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Let's proceed to step 16:
When dividing 4820 by 983, we get 4 with a remainder of 888.
The next digit of our result is 4. 
Result so far: 12490.48321464
If we take 3932 away from 4820, we end up with 888.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8880, and continue the process.

The final outcome is 12490.48321464, with a leftover of 8.88e-07.