We're dividing 67226910 by 391 
The aim is to understand the frequency of 391 in 67226910.

Let's proceed to step 1:
If we divide 6 by 391, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 391

On to step 2:
391 can be fit into 67 0 times, resulting in a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Bring next digit (2) of the dividend behind the 67 and repeat the process: 672 / 391

Let's proceed to step 3:
The number 391 fits into 672 1 times, leaving a remainder of 281.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 281 after subtracting 391 from 672.
Fetch the next digit (2) from the dividend, attach it to 281 and continue: 2812 / 391

On to step 4:
The number 391 fits into 2812 7 times, leaving a remainder of 75.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 2737 from 2812 and we're left with 75.
Take the next digit (6) from the dividend and append it to 75, then repeat: 756 / 391

On to step 5:
391 goes into 756 1 times with a remainder of 365.
Record the quotient 1 as the next digit in the result. 
Result so far: 171.0
The remainder is 365 after subtracting 391 from 756.
Include the next digit (9) from the dividend after 365, then repeat: 3659 / 391

On to step 6:
When dividing 3659 by 391, we get 9 with a remainder of 140.
Record the quotient 9 as the next digit in the result. 
Result so far: 1719.0
If we subtract 3519 from 3659, we get 140.
Take the next digit (1) from the dividend and append it to 140, then repeat: 1401 / 391

Step 7:
If we divide 1401 by 391, we get 3 and a remainder of 228.
The number 3 becomes the next digit in our result. 
Result so far: 17193.0
Subtracting 1173 from 1401 leaves us with 228.
Fetch the next digit (0) from the dividend, attach it to 228 and continue: 2280 / 391

Going ahead to step 8:
391 goes into 2280 5 times with a remainder of 325.
The next digit of our result is 5. 
Result so far: 171935.0
The remainder is 325 after subtracting 1955 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Step 9:
The number 391 fits into 3250 8 times, leaving a remainder of 122.
Record the quotient 8 as the next digit in the result. 
Result so far: 171935.8
If we subtract 3128 from 3250, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 10:
If we divide 1220 by 391, we get 3 and a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 171935.83
Subtracting 1173 from 1220 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 11:
When dividing 470 by 391, we get 1 with a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 171935.831
If we take 391 away from 470, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 12:
391 can be fit into 790 2 times, resulting in a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 171935.8312
Subtract 782 from 790 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
391 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 171935.8312
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
If we divide 800 by 391, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 171935.831202
Deduct 782 from 800 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 15:
391 can be fit into 180 0 times, resulting in a remainder of 180.
Put 0 as the next digit of the answer. 
Result so far: 171935.831202
If we take 0 away from 180, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 16:
391 goes into 1800 4 times with a remainder of 236.
Put 4 as the next digit of the answer. 
Result so far: 171935.83120204
The remainder is 236 after subtracting 1564 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

The quotient of the division is 171935.83120204, and the remainder is 2.36e-07.