We're dividing 78153128 by 618 
The aim is to understand the frequency of 618 in 78153128.

On to step 1:
When dividing 7 by 618, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 618

Going ahead to step 2:
If we divide 78 by 618, we get 0 and a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Include the next digit (1) from the dividend after 78, then repeat: 781 / 618

Moving on to step 3:
The number 618 fits into 781 1 times, leaving a remainder of 163.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 618 from 781 to get 163.
Include the next digit (5) from the dividend after 163, then repeat: 1635 / 618

Moving on to step 4:
1635 divided by 618 is 2 with a remainder of 399.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1236 from 1635 leaves us with 399.
Grab the next digit (3) from the dividend, add it to 399, then carry on: 3993 / 618

Advancing to step 5:
618 goes into 3993 6 times with a remainder of 285.
The next digit of our result is 6. 
Result so far: 126.0
Deduct 3708 from 3993 and we're left with 285.
Take the next digit (1) from the dividend and append it to 285, then repeat: 2851 / 618

Moving on to step 6:
When dividing 2851 by 618, we get 4 with a remainder of 379.
The next digit of our result is 4. 
Result so far: 1264.0
If we take 2472 away from 2851, we end up with 379.
Take the next digit (2) from the dividend and append it to 379, then repeat: 3792 / 618

Step 7:
The number 618 fits into 3792 6 times, leaving a remainder of 84.
Write down 6 as next digit of the result. 
Result so far: 12646.0
If we subtract 3708 from 3792, we get 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 618

Going ahead to step 8:
618 can be fit into 848 1 times, resulting in a remainder of 230.
The next digit of our result is 1. 
Result so far: 126461.0
Deduct 618 from 848 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 9:
618 goes into 2300 3 times with a remainder of 446.
Use 3 as the next digit of our solution. 
Result so far: 126461.3
The remainder is 446 after subtracting 1854 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 10:
618 goes into 4460 7 times with a remainder of 134.
Record the quotient 7 as the next digit in the result. 
Result so far: 126461.37
Subtracting 4326 from 4460 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 11:
The number 618 fits into 1340 2 times, leaving a remainder of 104.
Write down 2 as next digit of the result. 
Result so far: 126461.372
Deduct 1236 from 1340 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 12:
The number 618 fits into 1040 1 times, leaving a remainder of 422.
Write down 1 as next digit of the result. 
Result so far: 126461.3721
The remainder is 422 after subtracting 618 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Advancing to step 13:
When dividing 4220 by 618, we get 6 with a remainder of 512.
The next digit of our result is 6. 
Result so far: 126461.37216
Subtract 3708 from 4220 to get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Advancing to step 14:
If we divide 5120 by 618, we get 8 and a remainder of 176.
Write down 8 as next digit of the result. 
Result so far: 126461.372168
Subtract 4944 from 5120 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 15:
The number 618 fits into 1760 2 times, leaving a remainder of 524.
Write down 2 as next digit of the result. 
Result so far: 126461.3721682
If we take 1236 away from 1760, we end up with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Going ahead to step 16:
5240 divided by 618 is 8 with a remainder of 296.
Record the quotient 8 as the next digit in the result. 
Result so far: 126461.37216828
Subtracting 4944 from 5240 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

The final outcome is 126461.37216828, with a leftover of 2.96e-07.