78523348 ÷ 286 
The aim is to understand the frequency of 286 in 78523348.

Step 1:
286 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 286

Moving on to step 2:
286 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Grab the next digit (5) from the dividend, add it to 78, then carry on: 785 / 286

Step 3:
When dividing 785 by 286, we get 2 with a remainder of 213.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 572 from 785 and we're left with 213.
Append the next digit (2) from the dividend to 213 and continue with: 2132 / 286

Let's proceed to step 4:
The number 286 fits into 2132 7 times, leaving a remainder of 130.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we take 2002 away from 2132, we end up with 130.
Fetch the next digit (3) from the dividend, attach it to 130 and continue: 1303 / 286

On to step 5:
1303 divided by 286 is 4 with a remainder of 159.
Use 4 as the next digit of our solution. 
Result so far: 274.0
Subtracting 1144 from 1303 leaves us with 159.
Bring next digit (3) of the dividend behind the 159 and repeat the process: 1593 / 286

Advancing to step 6:
When dividing 1593 by 286, we get 5 with a remainder of 163.
Use 5 as the next digit of our solution. 
Result so far: 2745.0
Deduct 1430 from 1593 and we're left with 163.
Take the next digit (4) from the dividend and append it to 163, then repeat: 1634 / 286

On to step 7:
If we divide 1634 by 286, we get 5 and a remainder of 204.
Write down 5 as next digit of the result. 
Result so far: 27455.0
Deduct 1430 from 1634 and we're left with 204.
Grab the next digit (8) from the dividend, add it to 204, then carry on: 2048 / 286

Advancing to step 8:
286 goes into 2048 7 times with a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 274557.0
If we take 2002 away from 2048, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 9:
460 divided by 286 is 1 with a remainder of 174.
The next digit of our result is 1. 
Result so far: 274557.1
Subtract 286 from 460 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
The number 286 fits into 1740 6 times, leaving a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 274557.16
Deduct 1716 from 1740 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
When dividing 240 by 286, we get 0 with a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 274557.16
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 12:
If we divide 2400 by 286, we get 8 and a remainder of 112.
Write down 8 as next digit of the result. 
Result so far: 274557.1608
If we take 2288 away from 2400, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 13:
286 can be fit into 1120 3 times, resulting in a remainder of 262.
Write down 3 as next digit of the result. 
Result so far: 274557.16083
If we subtract 858 from 1120, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Step 14:
286 goes into 2620 9 times with a remainder of 46.
The next digit of our result is 9. 
Result so far: 274557.160839
If we take 2574 away from 2620, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 15:
The number 286 fits into 460 1 times, leaving a remainder of 174.
The number 1 becomes the next digit in our result. 
Result so far: 274557.1608391
Subtracting 286 from 460 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

On to step 16:
286 can be fit into 1740 6 times, resulting in a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 274557.16083916
Deduct 1716 from 1740 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 274557.16083916 with a remainder of 2.4e-08.