78957109 divided by 356 
The aim is to understand the frequency of 356 in 78957109.

Let's proceed to step 1:
If we divide 7 by 356, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 356

Let's proceed to step 2:
If we divide 78 by 356, we get 0 and a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Take the next digit (9) from the dividend and append it to 78, then repeat: 789 / 356

Moving on to step 3:
356 goes into 789 2 times with a remainder of 77.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 712 from 789 to get 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 356

Advancing to step 4:
If we divide 775 by 356, we get 2 and a remainder of 63.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Deduct 712 from 775 and we're left with 63.
Fetch the next digit (7) from the dividend, attach it to 63 and continue: 637 / 356

Going ahead to step 5:
If we divide 637 by 356, we get 1 and a remainder of 281.
Use 1 as the next digit of our solution. 
Result so far: 221.0
Deduct 356 from 637 and we're left with 281.
Take the next digit (1) from the dividend and append it to 281, then repeat: 2811 / 356

Moving on to step 6:
The number 356 fits into 2811 7 times, leaving a remainder of 319.
The number 7 becomes the next digit in our result. 
Result so far: 2217.0
The remainder is 319 after subtracting 2492 from 2811.
Append the next digit (0) from the dividend to 319 and continue with: 3190 / 356

Step 7:
356 goes into 3190 8 times with a remainder of 342.
The next digit of our result is 8. 
Result so far: 22178.0
Subtracting 2848 from 3190 leaves us with 342.
Bring next digit (9) of the dividend behind the 342 and repeat the process: 3429 / 356

Advancing to step 8:
356 can be fit into 3429 9 times, resulting in a remainder of 225.
Write down 9 as next digit of the result. 
Result so far: 221789.0
Subtracting 3204 from 3429 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 9:
The number 356 fits into 2250 6 times, leaving a remainder of 114.
The number 6 becomes the next digit in our result. 
Result so far: 221789.6
Subtracting 2136 from 2250 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Advancing to step 10:
The number 356 fits into 1140 3 times, leaving a remainder of 72.
Put 3 as the next digit of the answer. 
Result so far: 221789.63
The remainder is 72 after subtracting 1068 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
356 can be fit into 720 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 221789.632
Deduct 712 from 720 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 356, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 221789.632
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
When dividing 800 by 356, we get 2 with a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 221789.63202
Deduct 712 from 800 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 14:
356 can be fit into 880 2 times, resulting in a remainder of 168.
Use 2 as the next digit of our solution. 
Result so far: 221789.632022
Deduct 712 from 880 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

In conclusion, the division gives 221789.632022 with a balance of 1.68e-05.