We're dividing 31101078 by 403 
Let's see how many times 403 fits into 31101078.

Step 1:
When dividing 3 by 403, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 403

Advancing to step 2:
31 divided by 403 is 0 with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 403

On to step 3:
When dividing 311 by 403, we get 0 with a remainder of 311.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 311 to get 311.
Fetch the next digit (0) from the dividend, attach it to 311 and continue: 3110 / 403

Advancing to step 4:
When dividing 3110 by 403, we get 7 with a remainder of 289.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 2821 away from 3110, we end up with 289.
Append the next digit (1) from the dividend to 289 and continue with: 2891 / 403

Let's proceed to step 5:
When dividing 2891 by 403, we get 7 with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Subtract 2821 from 2891 to get 70.
Grab the next digit (0) from the dividend, add it to 70, then carry on: 700 / 403

Let's proceed to step 6:
The number 403 fits into 700 1 times, leaving a remainder of 297.
The next digit of our result is 1. 
Result so far: 771.0
If we subtract 403 from 700, we get 297.
Bring next digit (7) of the dividend behind the 297 and repeat the process: 2977 / 403

Moving on to step 7:
If we divide 2977 by 403, we get 7 and a remainder of 156.
Write down 7 as next digit of the result. 
Result so far: 7717.0
If we subtract 2821 from 2977, we get 156.
Bring next digit (8) of the dividend behind the 156 and repeat the process: 1568 / 403

On to step 8:
The number 403 fits into 1568 3 times, leaving a remainder of 359.
Use 3 as the next digit of our solution. 
Result so far: 77173.0
Subtract 1209 from 1568 to get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 9:
3590 divided by 403 is 8 with a remainder of 366.
Write down 8 as next digit of the result. 
Result so far: 77173.8
If we subtract 3224 from 3590, we get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Let's proceed to step 10:
3660 divided by 403 is 9 with a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 77173.89
If we subtract 3627 from 3660, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 11:
If we divide 330 by 403, we get 0 and a remainder of 330.
Put 0 as the next digit of the answer. 
Result so far: 77173.89
Subtract 0 from 330 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Moving on to step 12:
403 goes into 3300 8 times with a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 77173.8908
Deduct 3224 from 3300 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 13:
403 can be fit into 760 1 times, resulting in a remainder of 357.
Write down 1 as next digit of the result. 
Result so far: 77173.89081
Subtracting 403 from 760 leaves us with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Advancing to step 14:
3570 divided by 403 is 8 with a remainder of 346.
Record the quotient 8 as the next digit in the result. 
Result so far: 77173.890818
Subtract 3224 from 3570 to get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Step 15:
3460 divided by 403 is 8 with a remainder of 236.
The number 8 becomes the next digit in our result. 
Result so far: 77173.8908188
The remainder is 236 after subtracting 3224 from 3460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

The final result is 77173.8908188 with a remainder of 2.36e-06.