76346117 ÷ 646 
The aim is to understand the frequency of 646 in 76346117.

Let's proceed to step 1:
The number 646 fits into 7 0 times, leaving 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.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 646

Going ahead to step 2:
646 can be fit into 76 0 times, resulting in a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 76 to get 76.
Grab the next digit (3) from the dividend, add it to 76, then carry on: 763 / 646

Let's proceed to step 3:
646 goes into 763 1 times with a remainder of 117.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 646 from 763 and we're left with 117.
Fetch the next digit (4) from the dividend, attach it to 117 and continue: 1174 / 646

Moving on to step 4:
The number 646 fits into 1174 1 times, leaving a remainder of 528.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 528 after subtracting 646 from 1174.
Include the next digit (6) from the dividend after 528, then repeat: 5286 / 646

On to step 5:
When dividing 5286 by 646, we get 8 with a remainder of 118.
The number 8 becomes the next digit in our result. 
Result so far: 118.0
If we take 5168 away from 5286, we end up with 118.
Take the next digit (1) from the dividend and append it to 118, then repeat: 1181 / 646

Advancing to step 6:
646 can be fit into 1181 1 times, resulting in a remainder of 535.
Use 1 as the next digit of our solution. 
Result so far: 1181.0
If we take 646 away from 1181, we end up with 535.
Include the next digit (1) from the dividend after 535, then repeat: 5351 / 646

Moving on to step 7:
If we divide 5351 by 646, we get 8 and a remainder of 183.
Write down 8 as next digit of the result. 
Result so far: 11818.0
If we take 5168 away from 5351, we end up with 183.
Grab the next digit (7) from the dividend, add it to 183, then carry on: 1837 / 646

Let's proceed to step 8:
The number 646 fits into 1837 2 times, leaving a remainder of 545.
The number 2 becomes the next digit in our result. 
Result so far: 118182.0
Deduct 1292 from 1837 and we're left with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Going ahead to step 9:
5450 divided by 646 is 8 with a remainder of 282.
Write down 8 as next digit of the result. 
Result so far: 118182.8
Deduct 5168 from 5450 and we're left with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Step 10:
2820 divided by 646 is 4 with a remainder of 236.
The number 4 becomes the next digit in our result. 
Result so far: 118182.84
Deduct 2584 from 2820 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 11:
When dividing 2360 by 646, we get 3 with a remainder of 422.
Write down 3 as next digit of the result. 
Result so far: 118182.843
Subtract 1938 from 2360 to get 422.
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 12:
If we divide 4220 by 646, we get 6 and a remainder of 344.
Record the quotient 6 as the next digit in the result. 
Result so far: 118182.8436
Subtract 3876 from 4220 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Moving on to step 13:
646 goes into 3440 5 times with a remainder of 210.
Write down 5 as next digit of the result. 
Result so far: 118182.84365
Deduct 3230 from 3440 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 14:
If we divide 2100 by 646, we get 3 and a remainder of 162.
The number 3 becomes the next digit in our result. 
Result so far: 118182.843653
Subtracting 1938 from 2100 leaves us with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 15:
646 can be fit into 1620 2 times, resulting in a remainder of 328.
The number 2 becomes the next digit in our result. 
Result so far: 118182.8436532
If we subtract 1292 from 1620, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 16:
646 goes into 3280 5 times with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 118182.84365325
If we take 3230 away from 3280, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 118182.84365325, with a leftover of 5e-08.