12190831 ÷ 790 
We want to divide 12190831 by 790.

Advancing to step 1:
If we divide 1 by 790, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 790

On to step 2:
12 divided by 790 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 790

Moving on to step 3:
When dividing 121 by 790, we get 0 with a remainder of 121.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 121 and we're left with 121.
Fetch the next digit (9) from the dividend, attach it to 121 and continue: 1219 / 790

Let's proceed to step 4:
When dividing 1219 by 790, we get 1 with a remainder of 429.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 790 from 1219 to get 429.
Grab the next digit (0) from the dividend, add it to 429, then carry on: 4290 / 790

Moving on to step 5:
790 can be fit into 4290 5 times, resulting in a remainder of 340.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 3950 from 4290 to get 340.
Grab the next digit (8) from the dividend, add it to 340, then carry on: 3408 / 790

Let's proceed to step 6:
790 can be fit into 3408 4 times, resulting in a remainder of 248.
Write down 4 as next digit of the result. 
Result so far: 154.0
Subtracting 3160 from 3408 leaves us with 248.
Grab the next digit (3) from the dividend, add it to 248, then carry on: 2483 / 790

Moving on to step 7:
The number 790 fits into 2483 3 times, leaving a remainder of 113.
Write down 3 as next digit of the result. 
Result so far: 1543.0
Subtracting 2370 from 2483 leaves us with 113.
Bring next digit (1) of the dividend behind the 113 and repeat the process: 1131 / 790

Step 8:
The number 790 fits into 1131 1 times, leaving a remainder of 341.
Write down 1 as next digit of the result. 
Result so far: 15431.0
If we subtract 790 from 1131, we get 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Step 9:
3410 divided by 790 is 4 with a remainder of 250.
Record the quotient 4 as the next digit in the result. 
Result so far: 15431.4
Subtracting 3160 from 3410 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 10:
When dividing 2500 by 790, we get 3 with a remainder of 130.
Record the quotient 3 as the next digit in the result. 
Result so far: 15431.43
The remainder is 130 after subtracting 2370 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 11:
790 can be fit into 1300 1 times, resulting in a remainder of 510.
Record the quotient 1 as the next digit in the result. 
Result so far: 15431.431
If we subtract 790 from 1300, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Let's proceed to step 12:
5100 divided by 790 is 6 with a remainder of 360.
The next digit of our result is 6. 
Result so far: 15431.4316
The remainder is 360 after subtracting 4740 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 13:
3600 divided by 790 is 4 with a remainder of 440.
The number 4 becomes the next digit in our result. 
Result so far: 15431.43164
If we take 3160 away from 3600, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 14:
If we divide 4400 by 790, we get 5 and a remainder of 450.
Record the quotient 5 as the next digit in the result. 
Result so far: 15431.431645
Subtract 3950 from 4400 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 15:
790 can be fit into 4500 5 times, resulting in a remainder of 550.
The next digit of our result is 5. 
Result so far: 15431.4316455
The remainder is 550 after subtracting 3950 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

The final outcome is 15431.4316455, with a leftover of 5.5e-06.