We're dividing 13620754 by 624 
The aim is to understand the frequency of 624 in 13620754.

Moving on to step 1:
When dividing 1 by 624, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 624

Moving on to step 2:
If we divide 13 by 624, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 624

On to step 3:
The number 624 fits into 136 0 times, leaving a remainder of 136.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 136, we get 136.
Grab the next digit (2) from the dividend, add it to 136, then carry on: 1362 / 624

Moving on to step 4:
1362 divided by 624 is 2 with a remainder of 114.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 1248 from 1362, we get 114.
Append the next digit (0) from the dividend to 114 and continue with: 1140 / 624

Advancing to step 5:
624 can be fit into 1140 1 times, resulting in a remainder of 516.
Put 1 as the next digit of the answer. 
Result so far: 21.0
If we subtract 624 from 1140, we get 516.
Append the next digit (7) from the dividend to 516 and continue with: 5167 / 624

On to step 6:
The number 624 fits into 5167 8 times, leaving a remainder of 175.
The number 8 becomes the next digit in our result. 
Result so far: 218.0
Deduct 4992 from 5167 and we're left with 175.
Take the next digit (5) from the dividend and append it to 175, then repeat: 1755 / 624

Let's proceed to step 7:
When dividing 1755 by 624, we get 2 with a remainder of 507.
Record the quotient 2 as the next digit in the result. 
Result so far: 2182.0
Subtract 1248 from 1755 to get 507.
Grab the next digit (4) from the dividend, add it to 507, then carry on: 5074 / 624

Step 8:
The number 624 fits into 5074 8 times, leaving a remainder of 82.
Use 8 as the next digit of our solution. 
Result so far: 21828.0
If we take 4992 away from 5074, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 9:
624 can be fit into 820 1 times, resulting in a remainder of 196.
Put 1 as the next digit of the answer. 
Result so far: 21828.1
If we take 624 away from 820, we end up with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 10:
624 can be fit into 1960 3 times, resulting in a remainder of 88.
The next digit of our result is 3. 
Result so far: 21828.13
If we subtract 1872 from 1960, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 11:
The number 624 fits into 880 1 times, leaving a remainder of 256.
The next digit of our result is 1. 
Result so far: 21828.131
Deduct 624 from 880 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 12:
624 can be fit into 2560 4 times, resulting in a remainder of 64.
The next digit of our result is 4. 
Result so far: 21828.1314
Subtract 2496 from 2560 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
When dividing 640 by 624, we get 1 with a remainder of 16.
The next digit of our result is 1. 
Result so far: 21828.13141
Deduct 624 from 640 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
160 divided by 624 is 0 with a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 21828.13141
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 15:
If we divide 1600 by 624, we get 2 and a remainder of 352.
Use 2 as the next digit of our solution. 
Result so far: 21828.1314102
The remainder is 352 after subtracting 1248 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 16:
If we divide 3520 by 624, we get 5 and a remainder of 400.
The next digit of our result is 5. 
Result so far: 21828.13141025
Deduct 3120 from 3520 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 21828.13141025 with a balance of 4e-07.