68412340 ÷ 623 
The aim is to understand the frequency of 623 in 68412340.

Advancing to step 1:
When dividing 6 by 623, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 623

Advancing to step 2:
The number 623 fits into 68 0 times, leaving a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Bring next digit (4) of the dividend behind the 68 and repeat the process: 684 / 623

Let's proceed to step 3:
If we divide 684 by 623, we get 1 and a remainder of 61.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 623 from 684 leaves us with 61.
Append the next digit (1) from the dividend to 61 and continue with: 611 / 623

Let's proceed to step 4:
623 goes into 611 0 times with a remainder of 611.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 611, we end up with 611.
Bring next digit (2) of the dividend behind the 611 and repeat the process: 6112 / 623

Going ahead to step 5:
If we divide 6112 by 623, we get 9 and a remainder of 505.
Put 9 as the next digit of the answer. 
Result so far: 109.0
Deduct 5607 from 6112 and we're left with 505.
Bring next digit (3) of the dividend behind the 505 and repeat the process: 5053 / 623

Going ahead to step 6:
623 can be fit into 5053 8 times, resulting in a remainder of 69.
Put 8 as the next digit of the answer. 
Result so far: 1098.0
If we subtract 4984 from 5053, we get 69.
Fetch the next digit (4) from the dividend, attach it to 69 and continue: 694 / 623

On to step 7:
If we divide 694 by 623, we get 1 and a remainder of 71.
Write down 1 as next digit of the result. 
Result so far: 10981.0
If we subtract 623 from 694, we get 71.
Include the next digit (0) from the dividend after 71, then repeat: 710 / 623

Step 8:
When dividing 710 by 623, we get 1 with a remainder of 87.
Use 1 as the next digit of our solution. 
Result so far: 109811.0
The remainder is 87 after subtracting 623 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 9:
870 divided by 623 is 1 with a remainder of 247.
Record the quotient 1 as the next digit in the result. 
Result so far: 109811.1
Subtracting 623 from 870 leaves us with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 10:
If we divide 2470 by 623, we get 3 and a remainder of 601.
The next digit of our result is 3. 
Result so far: 109811.13
Deduct 1869 from 2470 and we're left with 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Advancing to step 11:
When dividing 6010 by 623, we get 9 with a remainder of 403.
Record the quotient 9 as the next digit in the result. 
Result so far: 109811.139
If we take 5607 away from 6010, we end up with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Advancing to step 12:
When dividing 4030 by 623, we get 6 with a remainder of 292.
Record the quotient 6 as the next digit in the result. 
Result so far: 109811.1396
If we take 3738 away from 4030, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 13:
The number 623 fits into 2920 4 times, leaving a remainder of 428.
The next digit of our result is 4. 
Result so far: 109811.13964
If we subtract 2492 from 2920, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Moving on to step 14:
When dividing 4280 by 623, we get 6 with a remainder of 542.
Record the quotient 6 as the next digit in the result. 
Result so far: 109811.139646
Deduct 3738 from 4280 and we're left with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Step 15:
When dividing 5420 by 623, we get 8 with a remainder of 436.
The number 8 becomes the next digit in our result. 
Result so far: 109811.1396468
The remainder is 436 after subtracting 4984 from 5420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Moving on to step 16:
If we divide 4360 by 623, we get 6 and a remainder of 622.
The next digit of our result is 6. 
Result so far: 109811.13964686
Subtracting 3738 from 4360 leaves us with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

The final result is 109811.13964686 with a remainder of 6.22e-07.