We're dividing 738993 by 86 
The aim is to understand the frequency of 86 in 738993.

Step 1:
If we divide 7 by 86, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 86

Advancing to step 2:
86 goes into 73 0 times with a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Include the next digit (8) from the dividend after 73, then repeat: 738 / 86

Going ahead to step 3:
When dividing 738 by 86, we get 8 with a remainder of 50.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 688 away from 738, we end up with 50.
Fetch the next digit (9) from the dividend, attach it to 50 and continue: 509 / 86

Advancing to step 4:
86 goes into 509 5 times with a remainder of 79.
The next digit of our result is 5. 
Result so far: 85.0
Subtract 430 from 509 to get 79.
Grab the next digit (9) from the dividend, add it to 79, then carry on: 799 / 86

Let's proceed to step 5:
86 can be fit into 799 9 times, resulting in a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 859.0
Subtracting 774 from 799 leaves us with 25.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 86

Advancing to step 6:
86 goes into 253 2 times with a remainder of 81.
Record the quotient 2 as the next digit in the result. 
Result so far: 8592.0
Subtracting 172 from 253 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 7:
810 divided by 86 is 9 with a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 8592.9
The remainder is 36 after subtracting 774 from 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 8:
The number 86 fits into 360 4 times, leaving a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 8592.94
The remainder is 16 after subtracting 344 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
The number 86 fits into 160 1 times, leaving a remainder of 74.
The next digit of our result is 1. 
Result so far: 8592.941
Deduct 86 from 160 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 10:
86 can be fit into 740 8 times, resulting in a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 8592.9418
If we take 688 away from 740, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 11:
86 goes into 520 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 8592.94186
Deduct 516 from 520 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
86 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 8592.94186
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 13:
86 can be fit into 400 4 times, resulting in a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 8592.9418604
If we take 344 away from 400, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
When dividing 560 by 86, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 8592.94186046
If we subtract 516 from 560, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 8592.94186046 with a remainder of 4.4e-08.