We're dividing 688891 by 73 
The aim is to understand the frequency of 73 in 688891.

Step 1:
The number 73 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 73

Advancing to step 2:
73 can be fit into 68 0 times, resulting in a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Bring next digit (8) of the dividend behind the 68 and repeat the process: 688 / 73

Going ahead to step 3:
When dividing 688 by 73, we get 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 657 away from 688, we end up with 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 73

Going ahead to step 4:
318 divided by 73 is 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 94.0
Subtract 292 from 318 to get 26.
Bring next digit (9) of the dividend behind the 26 and repeat the process: 269 / 73

Step 5:
When dividing 269 by 73, we get 3 with a remainder of 50.
Write down 3 as next digit of the result. 
Result so far: 943.0
The remainder is 50 after subtracting 219 from 269.
Grab the next digit (1) from the dividend, add it to 50, then carry on: 501 / 73

Going ahead to step 6:
501 divided by 73 is 6 with a remainder of 63.
Record the quotient 6 as the next digit in the result. 
Result so far: 9436.0
Subtracting 438 from 501 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 7:
73 goes into 630 8 times with a remainder of 46.
The number 8 becomes the next digit in our result. 
Result so far: 9436.8
Deduct 584 from 630 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
When dividing 460 by 73, we get 6 with a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 9436.86
The remainder is 22 after subtracting 438 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
220 divided by 73 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 9436.863
Subtract 219 from 220 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 10:
The number 73 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 9436.863
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
If we divide 100 by 73, we get 1 and a remainder of 27.
The next digit of our result is 1. 
Result so far: 9436.86301
Deduct 73 from 100 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 12:
73 goes into 270 3 times with a remainder of 51.
Write down 3 as next digit of the result. 
Result so far: 9436.863013
Subtract 219 from 270 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 13:
73 can be fit into 510 6 times, resulting in a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 9436.8630136
Deduct 438 from 510 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 14:
73 goes into 720 9 times with a remainder of 63.
The number 9 becomes the next digit in our result. 
Result so far: 9436.86301369
Deduct 657 from 720 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

The final result is 9436.86301369 with a remainder of 6.3e-08.