16458602 divided by 689 
We want to figure out the number of times 16458602 can be divided by 689.

Step 1:
689 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 689

Moving on to step 2:
689 can be fit into 16 0 times, resulting in a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 689

Advancing to step 3:
If we divide 164 by 689, we get 0 and a remainder of 164.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 164, we end up with 164.
Bring next digit (5) of the dividend behind the 164 and repeat the process: 1645 / 689

Let's proceed to step 4:
689 goes into 1645 2 times with a remainder of 267.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 1378 away from 1645, we end up with 267.
Bring next digit (8) of the dividend behind the 267 and repeat the process: 2678 / 689

Let's proceed to step 5:
If we divide 2678 by 689, we get 3 and a remainder of 611.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtract 2067 from 2678 to get 611.
Append the next digit (6) from the dividend to 611 and continue with: 6116 / 689

Let's proceed to step 6:
689 can be fit into 6116 8 times, resulting in a remainder of 604.
The number 8 becomes the next digit in our result. 
Result so far: 238.0
Subtract 5512 from 6116 to get 604.
Include the next digit (0) from the dividend after 604, then repeat: 6040 / 689

Going ahead to step 7:
689 can be fit into 6040 8 times, resulting in a remainder of 528.
Record the quotient 8 as the next digit in the result. 
Result so far: 2388.0
Deduct 5512 from 6040 and we're left with 528.
Take the next digit (2) from the dividend and append it to 528, then repeat: 5282 / 689

On to step 8:
689 goes into 5282 7 times with a remainder of 459.
Record the quotient 7 as the next digit in the result. 
Result so far: 23887.0
If we take 4823 away from 5282, we end up with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Advancing to step 9:
689 can be fit into 4590 6 times, resulting in a remainder of 456.
Put 6 as the next digit of the answer. 
Result so far: 23887.6
Subtracting 4134 from 4590 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Advancing to step 10:
The number 689 fits into 4560 6 times, leaving a remainder of 426.
Use 6 as the next digit of our solution. 
Result so far: 23887.66
The remainder is 426 after subtracting 4134 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

The final outcome is 23887.66, with a leftover of 0.426.