We're dividing 12860386 by 670 
The aim is to understand the frequency of 670 in 12860386.

Moving on to step 1:
1 divided by 670 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 670

On to step 2:
The number 670 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 670

Going ahead to step 3:
If we divide 128 by 670, we get 0 and a remainder of 128.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 128, we end up with 128.
Grab the next digit (6) from the dividend, add it to 128, then carry on: 1286 / 670

Advancing to step 4:
670 can be fit into 1286 1 times, resulting in a remainder of 616.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 616 after subtracting 670 from 1286.
Take the next digit (0) from the dividend and append it to 616, then repeat: 6160 / 670

Advancing to step 5:
6160 divided by 670 is 9 with a remainder of 130.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 6030 from 6160 and we're left with 130.
Fetch the next digit (3) from the dividend, attach it to 130 and continue: 1303 / 670

Step 6:
When dividing 1303 by 670, we get 1 with a remainder of 633.
Use 1 as the next digit of our solution. 
Result so far: 191.0
The remainder is 633 after subtracting 670 from 1303.
Fetch the next digit (8) from the dividend, attach it to 633 and continue: 6338 / 670

Going ahead to step 7:
If we divide 6338 by 670, we get 9 and a remainder of 308.
The next digit of our result is 9. 
Result so far: 1919.0
If we take 6030 away from 6338, we end up with 308.
Append the next digit (6) from the dividend to 308 and continue with: 3086 / 670

Moving on to step 8:
670 goes into 3086 4 times with a remainder of 406.
Put 4 as the next digit of the answer. 
Result so far: 19194.0
The remainder is 406 after subtracting 2680 from 3086.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Advancing to step 9:
670 can be fit into 4060 6 times, resulting in a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 19194.6
If we take 4020 away from 4060, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
670 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 19194.6
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
If we divide 4000 by 670, we get 5 and a remainder of 650.
Use 5 as the next digit of our solution. 
Result so far: 19194.605
If we subtract 3350 from 4000, we get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Advancing to step 12:
If we divide 6500 by 670, we get 9 and a remainder of 470.
Record the quotient 9 as the next digit in the result. 
Result so far: 19194.6059
If we take 6030 away from 6500, we end up with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 13:
670 goes into 4700 7 times with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 19194.60597
Deduct 4690 from 4700 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 14:
When dividing 100 by 670, we get 0 with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 19194.60597
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 15:
1000 divided by 670 is 1 with a remainder of 330.
Put 1 as the next digit of the answer. 
Result so far: 19194.6059701
Deduct 670 from 1000 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 16:
When dividing 3300 by 670, we get 4 with a remainder of 620.
Use 4 as the next digit of our solution. 
Result so far: 19194.60597014
Deduct 2680 from 3300 and we're left with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

The final result is 19194.60597014 with a remainder of 6.2e-07.