We're dividing 7912609 by 503 
We want to figure out the number of times 7912609 can be divided by 503.

Step 1:
503 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 503

Advancing to step 2:
503 can be fit into 79 0 times, resulting in a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 503

On to step 3:
503 goes into 791 1 times with a remainder of 288.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 503 from 791 to get 288.
Bring next digit (2) of the dividend behind the 288 and repeat the process: 2882 / 503

On to step 4:
If we divide 2882 by 503, we get 5 and a remainder of 367.
The next digit of our result is 5. 
Result so far: 15.0
The remainder is 367 after subtracting 2515 from 2882.
Take the next digit (6) from the dividend and append it to 367, then repeat: 3676 / 503

Step 5:
When dividing 3676 by 503, we get 7 with a remainder of 155.
The next digit of our result is 7. 
Result so far: 157.0
If we subtract 3521 from 3676, we get 155.
Append the next digit (0) from the dividend to 155 and continue with: 1550 / 503

On to step 6:
When dividing 1550 by 503, we get 3 with a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 1573.0
Subtract 1509 from 1550 to get 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 503

On to step 7:
When dividing 419 by 503, we get 0 with a remainder of 419.
Record the quotient 0 as the next digit in the result. 
Result so far: 15730.0
Subtract 0 from 419 to get 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Moving on to step 8:
If we divide 4190 by 503, we get 8 and a remainder of 166.
The next digit of our result is 8. 
Result so far: 15730.8
Deduct 4024 from 4190 and we're left with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 9:
1660 divided by 503 is 3 with a remainder of 151.
The number 3 becomes the next digit in our result. 
Result so far: 15730.83
Subtracting 1509 from 1660 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Let's proceed to step 10:
The number 503 fits into 1510 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 15730.833
The remainder is 1 after subtracting 1509 from 1510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 15730.833, with a leftover of 0.0001.