We're dividing 12278991 by 122 
Our goal is to divide 12278991 by 122.

Let's proceed to step 1:
If we divide 1 by 122, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 122

Advancing to step 2:
When dividing 12 by 122, we get 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 122

On to step 3:
122 divided by 122 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 122 from 122 and we're left with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 122

Step 4:
122 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 122

On to step 5:
The number 122 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 100.0
If we subtract 0 from 78, we get 78.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 122

Let's proceed to step 6:
When dividing 789 by 122, we get 6 with a remainder of 57.
Write down 6 as next digit of the result. 
Result so far: 1006.0
If we take 732 away from 789, we end up with 57.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 122

Step 7:
122 goes into 579 4 times with a remainder of 91.
The number 4 becomes the next digit in our result. 
Result so far: 10064.0
If we subtract 488 from 579, we get 91.
Append the next digit (1) from the dividend to 91 and continue with: 911 / 122

On to step 8:
If we divide 911 by 122, we get 7 and a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 100647.0
Subtracting 854 from 911 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 9:
570 divided by 122 is 4 with a remainder of 82.
The number 4 becomes the next digit in our result. 
Result so far: 100647.4
Deduct 488 from 570 and we're left with 82.
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 10:
820 divided by 122 is 6 with a remainder of 88.
Put 6 as the next digit of the answer. 
Result so far: 100647.46
The remainder is 88 after subtracting 732 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 11:
When dividing 880 by 122, we get 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 100647.467
Subtracting 854 from 880 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 12:
122 goes into 260 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 100647.4672
Deduct 244 from 260 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 13:
160 divided by 122 is 1 with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 100647.46721
If we subtract 122 from 160, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 14:
122 can be fit into 380 3 times, resulting in a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 100647.467213
Deduct 366 from 380 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 15:
140 divided by 122 is 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 100647.4672131
Subtract 122 from 140 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 16:
122 can be fit into 180 1 times, resulting in a remainder of 58.
The next digit of our result is 1. 
Result so far: 100647.46721311
Deduct 122 from 180 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 100647.46721311 and a remainder of 5.8e-08.