1253988 ÷ 688 
We want to figure out the number of times 1253988 can be divided by 688.

On to step 1:
688 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 688

Step 2:
688 can be fit into 12 0 times, resulting in a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 688

Advancing to step 3:
When dividing 125 by 688, we get 0 with a remainder of 125.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 125 and we're left with 125.
Grab the next digit (3) from the dividend, add it to 125, then carry on: 1253 / 688

Going ahead to step 4:
The number 688 fits into 1253 1 times, leaving a remainder of 565.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 688 away from 1253, we end up with 565.
Include the next digit (9) from the dividend after 565, then repeat: 5659 / 688

On to step 5:
When dividing 5659 by 688, we get 8 with a remainder of 155.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 5504 from 5659 leaves us with 155.
Bring next digit (8) of the dividend behind the 155 and repeat the process: 1558 / 688

Step 6:
688 goes into 1558 2 times with a remainder of 182.
Put 2 as the next digit of the answer. 
Result so far: 182.0
Deduct 1376 from 1558 and we're left with 182.
Grab the next digit (8) from the dividend, add it to 182, then carry on: 1828 / 688

On to step 7:
The number 688 fits into 1828 2 times, leaving a remainder of 452.
Use 2 as the next digit of our solution. 
Result so far: 1822.0
Subtracting 1376 from 1828 leaves us with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Let's proceed to step 8:
If we divide 4520 by 688, we get 6 and a remainder of 392.
Write down 6 as next digit of the result. 
Result so far: 1822.6
Deduct 4128 from 4520 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 9:
688 can be fit into 3920 5 times, resulting in a remainder of 480.
Write down 5 as next digit of the result. 
Result so far: 1822.65
The remainder is 480 after subtracting 3440 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 10:
The number 688 fits into 4800 6 times, leaving a remainder of 672.
The number 6 becomes the next digit in our result. 
Result so far: 1822.656
If we take 4128 away from 4800, we end up with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Going ahead to step 11:
688 can be fit into 6720 9 times, resulting in a remainder of 528.
Write down 9 as next digit of the result. 
Result so far: 1822.6569
If we subtract 6192 from 6720, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Advancing to step 12:
The number 688 fits into 5280 7 times, leaving a remainder of 464.
The number 7 becomes the next digit in our result. 
Result so far: 1822.65697
Subtracting 4816 from 5280 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 13:
The number 688 fits into 4640 6 times, leaving a remainder of 512.
Put 6 as the next digit of the answer. 
Result so far: 1822.656976
Subtracting 4128 from 4640 leaves us with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Step 14:
688 goes into 5120 7 times with a remainder of 304.
The number 7 becomes the next digit in our result. 
Result so far: 1822.6569767
Subtract 4816 from 5120 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

On to step 15:
The number 688 fits into 3040 4 times, leaving a remainder of 288.
The next digit of our result is 4. 
Result so far: 1822.65697674
Subtracting 2752 from 3040 leaves us with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

The final outcome is 1822.65697674, with a leftover of 2.88e-07.