We're dividing 76770086 by 348 
The aim is to understand the frequency of 348 in 76770086.

Step 1:
7 divided by 348 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 348

Let's proceed to step 2:
348 goes into 76 0 times with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Append the next digit (7) from the dividend to 76 and continue with: 767 / 348

On to step 3:
767 divided by 348 is 2 with a remainder of 71.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 696 from 767 and we're left with 71.
Append the next digit (7) from the dividend to 71 and continue with: 717 / 348

Step 4:
The number 348 fits into 717 2 times, leaving a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 696 from 717 to get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 348

Going ahead to step 5:
When dividing 210 by 348, we get 0 with a remainder of 210.
The next digit of our result is 0. 
Result so far: 220.0
If we subtract 0 from 210, we get 210.
Grab the next digit (0) from the dividend, add it to 210, then carry on: 2100 / 348

Going ahead to step 6:
348 goes into 2100 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 2206.0
Subtract 2088 from 2100 to get 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 348

Let's proceed to step 7:
If we divide 128 by 348, we get 0 and a remainder of 128.
Record the quotient 0 as the next digit in the result. 
Result so far: 22060.0
If we take 0 away from 128, we end up with 128.
Include the next digit (6) from the dividend after 128, then repeat: 1286 / 348

Let's proceed to step 8:
348 can be fit into 1286 3 times, resulting in a remainder of 242.
Use 3 as the next digit of our solution. 
Result so far: 220603.0
Subtracting 1044 from 1286 leaves us with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 9:
If we divide 2420 by 348, we get 6 and a remainder of 332.
Use 6 as the next digit of our solution. 
Result so far: 220603.6
Subtract 2088 from 2420 to get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

On to step 10:
The number 348 fits into 3320 9 times, leaving a remainder of 188.
Put 9 as the next digit of the answer. 
Result so far: 220603.69
The remainder is 188 after subtracting 3132 from 3320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 11:
When dividing 1880 by 348, we get 5 with a remainder of 140.
The next digit of our result is 5. 
Result so far: 220603.695
Subtracting 1740 from 1880 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 12:
If we divide 1400 by 348, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 220603.6954
Subtract 1392 from 1400 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
80 divided by 348 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 220603.6954
The remainder is 80 after subtracting 0 from 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 14:
When dividing 800 by 348, we get 2 with a remainder of 104.
Record the quotient 2 as the next digit in the result. 
Result so far: 220603.695402
If we take 696 away from 800, we end up 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.

Going ahead to step 15:
348 goes into 1040 2 times with a remainder of 344.
The next digit of our result is 2. 
Result so far: 220603.6954022
Deduct 696 from 1040 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final outcome is 220603.6954022, with a leftover of 3.44e-06.