We're dividing 70101772 by 309 
The aim is to understand the frequency of 309 in 70101772.

Let's proceed to step 1:
309 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 309

Advancing to step 2:
When dividing 70 by 309, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Append the next digit (1) from the dividend to 70 and continue with: 701 / 309

On to step 3:
309 goes into 701 2 times with a remainder of 83.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 618 from 701 and we're left with 83.
Grab the next digit (0) from the dividend, add it to 83, then carry on: 830 / 309

Advancing to step 4:
The number 309 fits into 830 2 times, leaving a remainder of 212.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
The remainder is 212 after subtracting 618 from 830.
Bring next digit (1) of the dividend behind the 212 and repeat the process: 2121 / 309

On to step 5:
2121 divided by 309 is 6 with a remainder of 267.
Record the quotient 6 as the next digit in the result. 
Result so far: 226.0
Deduct 1854 from 2121 and we're left with 267.
Grab the next digit (7) from the dividend, add it to 267, then carry on: 2677 / 309

Moving on to step 6:
When dividing 2677 by 309, we get 8 with a remainder of 205.
Write down 8 as next digit of the result. 
Result so far: 2268.0
The remainder is 205 after subtracting 2472 from 2677.
Bring next digit (7) of the dividend behind the 205 and repeat the process: 2057 / 309

Going ahead to step 7:
309 can be fit into 2057 6 times, resulting in a remainder of 203.
The next digit of our result is 6. 
Result so far: 22686.0
Subtract 1854 from 2057 to get 203.
Grab the next digit (2) from the dividend, add it to 203, then carry on: 2032 / 309

Step 8:
If we divide 2032 by 309, we get 6 and a remainder of 178.
Put 6 as the next digit of the answer. 
Result so far: 226866.0
If we take 1854 away from 2032, we end up with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

On to step 9:
The number 309 fits into 1780 5 times, leaving a remainder of 235.
Put 5 as the next digit of the answer. 
Result so far: 226866.5
Deduct 1545 from 1780 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 10:
When dividing 2350 by 309, we get 7 with a remainder of 187.
Put 7 as the next digit of the answer. 
Result so far: 226866.57
The remainder is 187 after subtracting 2163 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

On to step 11:
309 can be fit into 1870 6 times, resulting in a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 226866.576
Subtracting 1854 from 1870 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
160 divided by 309 is 0 with a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 226866.576
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 13:
309 goes into 1600 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 226866.57605
Deduct 1545 from 1600 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 14:
The number 309 fits into 550 1 times, leaving a remainder of 241.
Write down 1 as next digit of the result. 
Result so far: 226866.576051
If we subtract 309 from 550, we get 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Moving on to step 15:
309 goes into 2410 7 times with a remainder of 247.
Write down 7 as next digit of the result. 
Result so far: 226866.5760517
Deduct 2163 from 2410 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Let's proceed to step 16:
When dividing 2470 by 309, we get 7 with a remainder of 307.
Write down 7 as next digit of the result. 
Result so far: 226866.57605177
Subtract 2163 from 2470 to get 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

In conclusion, the division gives 226866.57605177 with a balance of 3.07e-07.