We're dividing 66990 by 38 
We want to figure out the number of times 66990 can be divided by 38.

Step 1:
When dividing 6 by 38, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 38

Advancing to step 2:
66 divided by 38 is 1 with a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 38 from 66 and we're left with 28.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 38

Moving on to step 3:
38 can be fit into 289 7 times, resulting in a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 266 from 289 and we're left with 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 38

Step 4:
239 divided by 38 is 6 with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 176.0
Subtract 228 from 239 to get 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 38

Going ahead to step 5:
The number 38 fits into 110 2 times, leaving a remainder of 34.
Write down 2 as next digit of the result. 
Result so far: 1762.0
Subtract 76 from 110 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 6:
The number 38 fits into 340 8 times, leaving a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 1762.8
Subtract 304 from 340 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 7:
360 divided by 38 is 9 with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 1762.89
If we subtract 342 from 360, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
The number 38 fits into 180 4 times, leaving a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 1762.894
Subtract 152 from 180 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
280 divided by 38 is 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 1762.8947
Subtracting 266 from 280 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
38 goes into 140 3 times with a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 1762.89473
The remainder is 26 after subtracting 114 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 11:
If we divide 260 by 38, we get 6 and a remainder of 32.
The next digit of our result is 6. 
Result so far: 1762.894736
Deduct 228 from 260 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
38 goes into 320 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 1762.8947368
If we take 304 away from 320, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
When dividing 160 by 38, we get 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 1762.89473684
Deduct 152 from 160 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 1762.89473684, with a leftover of 8e-09.