66628497 divided by 170 
We want to figure out the number of times 66628497 can be divided by 170.

Advancing to step 1:
170 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 170

Moving on to step 2:
When dividing 66 by 170, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Append the next digit (6) from the dividend to 66 and continue with: 666 / 170

Step 3:
If we divide 666 by 170, we get 3 and a remainder of 156.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 510 from 666 leaves us with 156.
Bring next digit (2) of the dividend behind the 156 and repeat the process: 1562 / 170

Going ahead to step 4:
170 goes into 1562 9 times with a remainder of 32.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 1530 from 1562 to get 32.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 170

On to step 5:
170 goes into 328 1 times with a remainder of 158.
Use 1 as the next digit of our solution. 
Result so far: 391.0
Subtracting 170 from 328 leaves us with 158.
Take the next digit (4) from the dividend and append it to 158, then repeat: 1584 / 170

Going ahead to step 6:
1584 divided by 170 is 9 with a remainder of 54.
Put 9 as the next digit of the answer. 
Result so far: 3919.0
Deduct 1530 from 1584 and we're left with 54.
Bring next digit (9) of the dividend behind the 54 and repeat the process: 549 / 170

Moving on to step 7:
The number 170 fits into 549 3 times, leaving a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 39193.0
Subtracting 510 from 549 leaves us with 39.
Take the next digit (7) from the dividend and append it to 39, then repeat: 397 / 170

Advancing to step 8:
If we divide 397 by 170, we get 2 and a remainder of 57.
Put 2 as the next digit of the answer. 
Result so far: 391932.0
If we subtract 340 from 397, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
The number 170 fits into 570 3 times, leaving a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 391932.3
Subtracting 510 from 570 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
600 divided by 170 is 3 with a remainder of 90.
Record the quotient 3 as the next digit in the result. 
Result so far: 391932.33
Subtract 510 from 600 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final result is 391932.33 with a remainder of 0.09.