We're dividing 61818006 by 687 
The aim is to understand the frequency of 687 in 61818006.

Advancing to step 1:
6 divided by 687 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 687

Let's proceed to step 2:
The number 687 fits into 61 0 times, leaving a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Grab the next digit (8) from the dividend, add it to 61, then carry on: 618 / 687

Moving on to step 3:
The number 687 fits into 618 0 times, leaving a remainder of 618.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 618 after subtracting 0 from 618.
Fetch the next digit (1) from the dividend, attach it to 618 and continue: 6181 / 687

Going ahead to step 4:
When dividing 6181 by 687, we get 8 with a remainder of 685.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 5496 from 6181 leaves us with 685.
Bring next digit (8) of the dividend behind the 685 and repeat the process: 6858 / 687

Moving on to step 5:
The number 687 fits into 6858 9 times, leaving a remainder of 675.
The next digit of our result is 9. 
Result so far: 89.0
Subtracting 6183 from 6858 leaves us with 675.
Append the next digit (0) from the dividend to 675 and continue with: 6750 / 687

Let's proceed to step 6:
6750 divided by 687 is 9 with a remainder of 567.
The next digit of our result is 9. 
Result so far: 899.0
If we take 6183 away from 6750, we end up with 567.
Bring next digit (0) of the dividend behind the 567 and repeat the process: 5670 / 687

Advancing to step 7:
687 can be fit into 5670 8 times, resulting in a remainder of 174.
Write down 8 as next digit of the result. 
Result so far: 8998.0
Subtracting 5496 from 5670 leaves us with 174.
Bring next digit (6) of the dividend behind the 174 and repeat the process: 1746 / 687

Advancing to step 8:
The number 687 fits into 1746 2 times, leaving a remainder of 372.
Record the quotient 2 as the next digit in the result. 
Result so far: 89982.0
Deduct 1374 from 1746 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 9:
The number 687 fits into 3720 5 times, leaving a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 89982.5
Subtracting 3435 from 3720 leaves us with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Step 10:
If we divide 2850 by 687, we get 4 and a remainder of 102.
Record the quotient 4 as the next digit in the result. 
Result so far: 89982.54
Subtracting 2748 from 2850 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 11:
1020 divided by 687 is 1 with a remainder of 333.
The next digit of our result is 1. 
Result so far: 89982.541
Subtract 687 from 1020 to get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

On to step 12:
687 can be fit into 3330 4 times, resulting in a remainder of 582.
Write down 4 as next digit of the result. 
Result so far: 89982.5414
Subtract 2748 from 3330 to get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Let's proceed to step 13:
The number 687 fits into 5820 8 times, leaving a remainder of 324.
Record the quotient 8 as the next digit in the result. 
Result so far: 89982.54148
Subtract 5496 from 5820 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 14:
The number 687 fits into 3240 4 times, leaving a remainder of 492.
Put 4 as the next digit of the answer. 
Result so far: 89982.541484
If we take 2748 away from 3240, we end up with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

On to step 15:
When dividing 4920 by 687, we get 7 with a remainder of 111.
Write down 7 as next digit of the result. 
Result so far: 89982.5414847
Subtract 4809 from 4920 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Step 16:
If we divide 1110 by 687, we get 1 and a remainder of 423.
Use 1 as the next digit of our solution. 
Result so far: 89982.54148471
If we subtract 687 from 1110, we get 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

The final outcome is 89982.54148471, with a leftover of 4.23e-07.