23460402 ÷ 686 
We want to figure out the number of times 23460402 can be divided by 686.

Advancing to step 1:
If we divide 2 by 686, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 686

On to step 2:
686 goes into 23 0 times with a remainder of 23.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 23 leaves us with 23.
Take the next digit (4) from the dividend and append it to 23, then repeat: 234 / 686

Advancing to step 3:
The number 686 fits into 234 0 times, leaving a remainder of 234.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 234 leaves us with 234.
Include the next digit (6) from the dividend after 234, then repeat: 2346 / 686

Advancing to step 4:
686 goes into 2346 3 times with a remainder of 288.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 2058 from 2346, we get 288.
Grab the next digit (0) from the dividend, add it to 288, then carry on: 2880 / 686

Let's proceed to step 5:
2880 divided by 686 is 4 with a remainder of 136.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtract 2744 from 2880 to get 136.
Include the next digit (4) from the dividend after 136, then repeat: 1364 / 686

Let's proceed to step 6:
When dividing 1364 by 686, we get 1 with a remainder of 678.
The next digit of our result is 1. 
Result so far: 341.0
If we subtract 686 from 1364, we get 678.
Bring next digit (0) of the dividend behind the 678 and repeat the process: 6780 / 686

Advancing to step 7:
686 goes into 6780 9 times with a remainder of 606.
The number 9 becomes the next digit in our result. 
Result so far: 3419.0
Subtracting 6174 from 6780 leaves us with 606.
Take the next digit (2) from the dividend and append it to 606, then repeat: 6062 / 686

Let's proceed to step 8:
When dividing 6062 by 686, we get 8 with a remainder of 574.
The number 8 becomes the next digit in our result. 
Result so far: 34198.0
If we take 5488 away from 6062, we end up with 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Moving on to step 9:
If we divide 5740 by 686, we get 8 and a remainder of 252.
Write down 8 as next digit of the result. 
Result so far: 34198.8
Deduct 5488 from 5740 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Let's proceed to step 10:
686 can be fit into 2520 3 times, resulting in a remainder of 462.
Record the quotient 3 as the next digit in the result. 
Result so far: 34198.83
If we subtract 2058 from 2520, we get 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Step 11:
If we divide 4620 by 686, we get 6 and a remainder of 504.
The next digit of our result is 6. 
Result so far: 34198.836
If we take 4116 away from 4620, we end up with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 12:
686 goes into 5040 7 times with a remainder of 238.
Write down 7 as next digit of the result. 
Result so far: 34198.8367
Subtract 4802 from 5040 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 13:
686 can be fit into 2380 3 times, resulting in a remainder of 322.
The next digit of our result is 3. 
Result so far: 34198.83673
If we subtract 2058 from 2380, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 14:
When dividing 3220 by 686, we get 4 with a remainder of 476.
Put 4 as the next digit of the answer. 
Result so far: 34198.836734
If we take 2744 away from 3220, we end up with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 15:
686 can be fit into 4760 6 times, resulting in a remainder of 644.
The number 6 becomes the next digit in our result. 
Result so far: 34198.8367346
If we take 4116 away from 4760, we end up with 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Advancing to step 16:
686 can be fit into 6440 9 times, resulting in a remainder of 266.
Record the quotient 9 as the next digit in the result. 
Result so far: 34198.83673469
Deduct 6174 from 6440 and we're left with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

After the division, we end up with 34198.83673469 and a remainder of 2.66e-07.