We look at the division of 66721080 by 181 
Our goal is to divide 66721080 by 181.

Step 1:
The number 181 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 181

Advancing to step 2:
The number 181 fits into 66 0 times, leaving a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (7) of the dividend behind the 66 and repeat the process: 667 / 181

Step 3:
181 goes into 667 3 times with a remainder of 124.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 543 from 667 and we're left with 124.
Include the next digit (2) from the dividend after 124, then repeat: 1242 / 181

On to step 4:
If we divide 1242 by 181, we get 6 and a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Subtract 1086 from 1242 to get 156.
Fetch the next digit (1) from the dividend, attach it to 156 and continue: 1561 / 181

Advancing to step 5:
1561 divided by 181 is 8 with a remainder of 113.
Use 8 as the next digit of our solution. 
Result so far: 368.0
Subtract 1448 from 1561 to get 113.
Include the next digit (0) from the dividend after 113, then repeat: 1130 / 181

Let's proceed to step 6:
When dividing 1130 by 181, we get 6 with a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 3686.0
If we subtract 1086 from 1130, we get 44.
Bring next digit (8) of the dividend behind the 44 and repeat the process: 448 / 181

Step 7:
When dividing 448 by 181, we get 2 with a remainder of 86.
Record the quotient 2 as the next digit in the result. 
Result so far: 36862.0
If we subtract 362 from 448, we get 86.
Include the next digit (0) from the dividend after 86, then repeat: 860 / 181

Moving on to step 8:
If we divide 860 by 181, we get 4 and a remainder of 136.
Write down 4 as next digit of the result. 
Result so far: 368624.0
The remainder is 136 after subtracting 724 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Step 9:
1360 divided by 181 is 7 with a remainder of 93.
The next digit of our result is 7. 
Result so far: 368624.7
Subtract 1267 from 1360 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 10:
If we divide 930 by 181, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 368624.75
If we subtract 905 from 930, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
The number 181 fits into 250 1 times, leaving a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 368624.751
Deduct 181 from 250 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 12:
181 goes into 690 3 times with a remainder of 147.
The number 3 becomes the next digit in our result. 
Result so far: 368624.7513
Subtracting 543 from 690 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 13:
1470 divided by 181 is 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 368624.75138
Deduct 1448 from 1470 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 14:
If we divide 220 by 181, we get 1 and a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 368624.751381
Subtracting 181 from 220 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 15:
390 divided by 181 is 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 368624.7513812
Deduct 362 from 390 and we're left with 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 16:
181 goes into 280 1 times with a remainder of 99.
Record the quotient 1 as the next digit in the result. 
Result so far: 368624.75138121
If we subtract 181 from 280, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

The final result is 368624.75138121 with a remainder of 9.9e-08.