We look at the division of 73177434 by 306 
The aim is to understand the frequency of 306 in 73177434.

Step 1:
The number 306 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 306

Step 2:
When dividing 73 by 306, we get 0 with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Bring next digit (1) of the dividend behind the 73 and repeat the process: 731 / 306

Advancing to step 3:
The number 306 fits into 731 2 times, leaving a remainder of 119.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 612 from 731 leaves us with 119.
Append the next digit (7) from the dividend to 119 and continue with: 1197 / 306

Let's proceed to step 4:
The number 306 fits into 1197 3 times, leaving a remainder of 279.
Write down 3 as next digit of the result. 
Result so far: 23.0
Subtract 918 from 1197 to get 279.
Fetch the next digit (7) from the dividend, attach it to 279 and continue: 2797 / 306

On to step 5:
The number 306 fits into 2797 9 times, leaving a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 239.0
If we subtract 2754 from 2797, we get 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 306

On to step 6:
If we divide 434 by 306, we get 1 and a remainder of 128.
Record the quotient 1 as the next digit in the result. 
Result so far: 2391.0
If we take 306 away from 434, we end up with 128.
Fetch the next digit (3) from the dividend, attach it to 128 and continue: 1283 / 306

Step 7:
The number 306 fits into 1283 4 times, leaving a remainder of 59.
Use 4 as the next digit of our solution. 
Result so far: 23914.0
Deduct 1224 from 1283 and we're left with 59.
Fetch the next digit (4) from the dividend, attach it to 59 and continue: 594 / 306

Moving on to step 8:
594 divided by 306 is 1 with a remainder of 288.
The next digit of our result is 1. 
Result so far: 239141.0
If we subtract 306 from 594, we get 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Let's proceed to step 9:
If we divide 2880 by 306, we get 9 and a remainder of 126.
Write down 9 as next digit of the result. 
Result so far: 239141.9
The remainder is 126 after subtracting 2754 from 2880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 10:
The number 306 fits into 1260 4 times, leaving a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 239141.94
Deduct 1224 from 1260 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 11:
When dividing 360 by 306, we get 1 with a remainder of 54.
The next digit of our result is 1. 
Result so far: 239141.941
Deduct 306 from 360 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 12:
306 goes into 540 1 times with a remainder of 234.
The next digit of our result is 1. 
Result so far: 239141.9411
Subtracting 306 from 540 leaves us with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

The final outcome is 239141.9411, with a leftover of 0.00234.