We look at the division of 30700339 by 443 
The aim is to understand the frequency of 443 in 30700339.

Going ahead to step 1:
The number 443 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 443

Moving on to step 2:
The number 443 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 443

Advancing to step 3:
The number 443 fits into 307 0 times, leaving a remainder of 307.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 307 and we're left with 307.
Fetch the next digit (0) from the dividend, attach it to 307 and continue: 3070 / 443

Let's proceed to step 4:
When dividing 3070 by 443, we get 6 with a remainder of 412.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 2658 from 3070 and we're left with 412.
Grab the next digit (0) from the dividend, add it to 412, then carry on: 4120 / 443

On to step 5:
443 can be fit into 4120 9 times, resulting in a remainder of 133.
Use 9 as the next digit of our solution. 
Result so far: 69.0
Deduct 3987 from 4120 and we're left with 133.
Append the next digit (3) from the dividend to 133 and continue with: 1333 / 443

Going ahead to step 6:
1333 divided by 443 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 693.0
Subtract 1329 from 1333 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 443

Advancing to step 7:
The number 443 fits into 43 0 times, leaving a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 6930.0
Deduct 0 from 43 and we're left with 43.
Append the next digit (9) from the dividend to 43 and continue with: 439 / 443

Going ahead to step 8:
439 divided by 443 is 0 with a remainder of 439.
Put 0 as the next digit of the answer. 
Result so far: 69300.0
Subtracting 0 from 439 leaves us with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Step 9:
443 can be fit into 4390 9 times, resulting in a remainder of 403.
Record the quotient 9 as the next digit in the result. 
Result so far: 69300.9
Subtract 3987 from 4390 to get 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Advancing to step 10:
If we divide 4030 by 443, we get 9 and a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 69300.99
The remainder is 43 after subtracting 3987 from 4030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The quotient of the division is 69300.99, and the remainder is 0.043.