21765380 ÷ 303 
The aim is to understand the frequency of 303 in 21765380.

Advancing to step 1:
The number 303 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 303

Advancing to step 2:
303 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (7) from the dividend after 21, then repeat: 217 / 303

Let's proceed to step 3:
The number 303 fits into 217 0 times, leaving a remainder of 217.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 217 to get 217.
Fetch the next digit (6) from the dividend, attach it to 217 and continue: 2176 / 303

Going ahead to step 4:
303 goes into 2176 7 times with a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 2121 from 2176, we get 55.
Append the next digit (5) from the dividend to 55 and continue with: 555 / 303

On to step 5:
When dividing 555 by 303, we get 1 with a remainder of 252.
The next digit of our result is 1. 
Result so far: 71.0
Subtract 303 from 555 to get 252.
Grab the next digit (3) from the dividend, add it to 252, then carry on: 2523 / 303

Moving on to step 6:
When dividing 2523 by 303, we get 8 with a remainder of 99.
The number 8 becomes the next digit in our result. 
Result so far: 718.0
Subtract 2424 from 2523 to get 99.
Append the next digit (8) from the dividend to 99 and continue with: 998 / 303

Let's proceed to step 7:
998 divided by 303 is 3 with a remainder of 89.
Write down 3 as next digit of the result. 
Result so far: 7183.0
Subtracting 909 from 998 leaves us with 89.
Include the next digit (0) from the dividend after 89, then repeat: 890 / 303

Advancing to step 8:
If we divide 890 by 303, we get 2 and a remainder of 284.
The next digit of our result is 2. 
Result so far: 71832.0
If we subtract 606 from 890, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 9:
When dividing 2840 by 303, we get 9 with a remainder of 113.
Record the quotient 9 as the next digit in the result. 
Result so far: 71832.9
Deduct 2727 from 2840 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 10:
1130 divided by 303 is 3 with a remainder of 221.
Write down 3 as next digit of the result. 
Result so far: 71832.93
If we subtract 909 from 1130, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Moving on to step 11:
303 can be fit into 2210 7 times, resulting in a remainder of 89.
Use 7 as the next digit of our solution. 
Result so far: 71832.937
If we take 2121 away from 2210, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Going ahead to step 12:
The number 303 fits into 890 2 times, leaving a remainder of 284.
Use 2 as the next digit of our solution. 
Result so far: 71832.9372
Subtract 606 from 890 to get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Advancing to step 13:
303 can be fit into 2840 9 times, resulting in a remainder of 113.
Record the quotient 9 as the next digit in the result. 
Result so far: 71832.93729
Deduct 2727 from 2840 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 14:
When dividing 1130 by 303, we get 3 with a remainder of 221.
The next digit of our result is 3. 
Result so far: 71832.937293
If we subtract 909 from 1130, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Let's proceed to step 15:
303 can be fit into 2210 7 times, resulting in a remainder of 89.
The number 7 becomes the next digit in our result. 
Result so far: 71832.9372937
Subtract 2121 from 2210 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 16:
When dividing 890 by 303, we get 2 with a remainder of 284.
The number 2 becomes the next digit in our result. 
Result so far: 71832.93729372
If we subtract 606 from 890, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Our division results in 71832.93729372 with a remaining 2.84e-07.