We look at the division of 667991 by 93 
The aim is to understand the frequency of 93 in 667991.

Step 1:
The number 93 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 93

Moving on to step 2:
If we divide 66 by 93, we get 0 and a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (7) from the dividend and append it to 66, then repeat: 667 / 93

Moving on to step 3:
93 goes into 667 7 times with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 651 from 667 leaves us with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 93

Advancing to step 4:
When dividing 169 by 93, we get 1 with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 71.0
Subtract 93 from 169 to get 76.
Append the next digit (9) from the dividend to 76 and continue with: 769 / 93

Advancing to step 5:
93 can be fit into 769 8 times, resulting in a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 718.0
The remainder is 25 after subtracting 744 from 769.
Bring next digit (1) of the dividend behind the 25 and repeat the process: 251 / 93

Advancing to step 6:
251 divided by 93 is 2 with a remainder of 65.
Record the quotient 2 as the next digit in the result. 
Result so far: 7182.0
Deduct 186 from 251 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 7:
When dividing 650 by 93, we get 6 with a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 7182.6
The remainder is 92 after subtracting 558 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Advancing to step 8:
920 divided by 93 is 9 with a remainder of 83.
Write down 9 as next digit of the result. 
Result so far: 7182.69
Deduct 837 from 920 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 9:
The number 93 fits into 830 8 times, leaving a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 7182.698
If we take 744 away from 830, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 10:
If we divide 860 by 93, we get 9 and a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 7182.6989
The remainder is 23 after subtracting 837 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 11:
93 goes into 230 2 times with a remainder of 44.
Put 2 as the next digit of the answer. 
Result so far: 7182.69892
Deduct 186 from 230 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 12:
The number 93 fits into 440 4 times, leaving a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 7182.698924
The remainder is 68 after subtracting 372 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 13:
The number 93 fits into 680 7 times, leaving a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 7182.6989247
Subtract 651 from 680 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 14:
290 divided by 93 is 3 with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 7182.69892473
Subtracting 279 from 290 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

After the division, we end up with 7182.69892473 and a remainder of 1.1e-08.