We're dividing 78220974 by 352 
The aim is to understand the frequency of 352 in 78220974.

Let's proceed to step 1:
When dividing 7 by 352, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 352

Let's proceed to step 2:
When dividing 78 by 352, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 352

Going ahead to step 3:
352 can be fit into 782 2 times, resulting in a remainder of 78.
The next digit of our result is 2. 
Result so far: 2.0
If we take 704 away from 782, we end up with 78.
Take the next digit (2) from the dividend and append it to 78, then repeat: 782 / 352

Going ahead to step 4:
352 goes into 782 2 times with a remainder of 78.
Put 2 as the next digit of the answer. 
Result so far: 22.0
The remainder is 78 after subtracting 704 from 782.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 352

Moving on to step 5:
352 can be fit into 780 2 times, resulting in a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 222.0
If we take 704 away from 780, we end up with 76.
Include the next digit (9) from the dividend after 76, then repeat: 769 / 352

Advancing to step 6:
352 can be fit into 769 2 times, resulting in a remainder of 65.
Use 2 as the next digit of our solution. 
Result so far: 2222.0
The remainder is 65 after subtracting 704 from 769.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 352

Moving on to step 7:
657 divided by 352 is 1 with a remainder of 305.
Record the quotient 1 as the next digit in the result. 
Result so far: 22221.0
Subtracting 352 from 657 leaves us with 305.
Take the next digit (4) from the dividend and append it to 305, then repeat: 3054 / 352

On to step 8:
3054 divided by 352 is 8 with a remainder of 238.
Record the quotient 8 as the next digit in the result. 
Result so far: 222218.0
Deduct 2816 from 3054 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 9:
352 goes into 2380 6 times with a remainder of 268.
Put 6 as the next digit of the answer. 
Result so far: 222218.6
Subtracting 2112 from 2380 leaves us with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Advancing to step 10:
If we divide 2680 by 352, we get 7 and a remainder of 216.
Use 7 as the next digit of our solution. 
Result so far: 222218.67
If we subtract 2464 from 2680, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 11:
352 can be fit into 2160 6 times, resulting in a remainder of 48.
The next digit of our result is 6. 
Result so far: 222218.676
The remainder is 48 after subtracting 2112 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
352 goes into 480 1 times with a remainder of 128.
Use 1 as the next digit of our solution. 
Result so far: 222218.6761
If we subtract 352 from 480, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 13:
When dividing 1280 by 352, we get 3 with a remainder of 224.
Use 3 as the next digit of our solution. 
Result so far: 222218.67613
The remainder is 224 after subtracting 1056 from 1280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 14:
352 goes into 2240 6 times with a remainder of 128.
Put 6 as the next digit of the answer. 
Result so far: 222218.676136
Subtracting 2112 from 2240 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 15:
352 goes into 1280 3 times with a remainder of 224.
Write down 3 as next digit of the result. 
Result so far: 222218.6761363
Deduct 1056 from 1280 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 16:
When dividing 2240 by 352, we get 6 with a remainder of 128.
Put 6 as the next digit of the answer. 
Result so far: 222218.67613636
The remainder is 128 after subtracting 2112 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

After the division, we end up with 222218.67613636 and a remainder of 1.28e-07.