We're dividing 13599605 by 670 
Our goal is to divide 13599605 by 670.

On to step 1:
When dividing 1 by 670, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 670

Moving on to step 2:
If we divide 13 by 670, we get 0 and a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 670

On to step 3:
670 can be fit into 135 0 times, resulting in a remainder of 135.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 135 and we're left with 135.
Include the next digit (9) from the dividend after 135, then repeat: 1359 / 670

On to step 4:
1359 divided by 670 is 2 with a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1340 from 1359, we get 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 670

Advancing to step 5:
199 divided by 670 is 0 with a remainder of 199.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 199, we get 199.
Include the next digit (6) from the dividend after 199, then repeat: 1996 / 670

On to step 6:
670 goes into 1996 2 times with a remainder of 656.
Record the quotient 2 as the next digit in the result. 
Result so far: 202.0
If we subtract 1340 from 1996, we get 656.
Append the next digit (0) from the dividend to 656 and continue with: 6560 / 670

Going ahead to step 7:
When dividing 6560 by 670, we get 9 with a remainder of 530.
Write down 9 as next digit of the result. 
Result so far: 2029.0
If we subtract 6030 from 6560, we get 530.
Grab the next digit (5) from the dividend, add it to 530, then carry on: 5305 / 670

On to step 8:
The number 670 fits into 5305 7 times, leaving a remainder of 615.
Use 7 as the next digit of our solution. 
Result so far: 20297.0
The remainder is 615 after subtracting 4690 from 5305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

Moving on to step 9:
6150 divided by 670 is 9 with a remainder of 120.
Use 9 as the next digit of our solution. 
Result so far: 20297.9
Subtracting 6030 from 6150 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 10:
670 can be fit into 1200 1 times, resulting in a remainder of 530.
Put 1 as the next digit of the answer. 
Result so far: 20297.91
Subtract 670 from 1200 to get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Advancing to step 11:
670 goes into 5300 7 times with a remainder of 610.
The next digit of our result is 7. 
Result so far: 20297.917
Subtracting 4690 from 5300 leaves us with 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Let's proceed to step 12:
670 goes into 6100 9 times with a remainder of 70.
Write down 9 as next digit of the result. 
Result so far: 20297.9179
Deduct 6030 from 6100 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 13:
700 divided by 670 is 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 20297.91791
The remainder is 30 after subtracting 670 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 14:
300 divided by 670 is 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 20297.91791
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 15:
670 goes into 3000 4 times with a remainder of 320.
Write down 4 as next digit of the result. 
Result so far: 20297.9179104
Subtract 2680 from 3000 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 16:
If we divide 3200 by 670, we get 4 and a remainder of 520.
The next digit of our result is 4. 
Result so far: 20297.91791044
Subtracting 2680 from 3200 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final outcome is 20297.91791044, with a leftover of 5.2e-07.