66451887 divided by 402 
We want to figure out the number of times 66451887 can be divided by 402.

Let's proceed to step 1:
402 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 402

Step 2:
66 divided by 402 is 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (4) from the dividend after 66, then repeat: 664 / 402

Step 3:
If we divide 664 by 402, we get 1 and a remainder of 262.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 262 after subtracting 402 from 664.
Include the next digit (5) from the dividend after 262, then repeat: 2625 / 402

Going ahead to step 4:
402 can be fit into 2625 6 times, resulting in a remainder of 213.
Write down 6 as next digit of the result. 
Result so far: 16.0
The remainder is 213 after subtracting 2412 from 2625.
Include the next digit (1) from the dividend after 213, then repeat: 2131 / 402

Moving on to step 5:
The number 402 fits into 2131 5 times, leaving a remainder of 121.
Record the quotient 5 as the next digit in the result. 
Result so far: 165.0
If we take 2010 away from 2131, we end up with 121.
Bring next digit (8) of the dividend behind the 121 and repeat the process: 1218 / 402

Moving on to step 6:
402 goes into 1218 3 times with a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 1653.0
Deduct 1206 from 1218 and we're left with 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 402

On to step 7:
The number 402 fits into 128 0 times, leaving a remainder of 128.
Write down 0 as next digit of the result. 
Result so far: 16530.0
Deduct 0 from 128 and we're left with 128.
Take the next digit (7) from the dividend and append it to 128, then repeat: 1287 / 402

Moving on to step 8:
402 can be fit into 1287 3 times, resulting in a remainder of 81.
Record the quotient 3 as the next digit in the result. 
Result so far: 165303.0
Deduct 1206 from 1287 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 9:
402 goes into 810 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 165303.2
If we take 804 away from 810, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
402 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 165303.2
Subtracting 0 from 60 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.

Moving on to step 11:
When dividing 600 by 402, we get 1 with a remainder of 198.
Write down 1 as next digit of the result. 
Result so far: 165303.201
If we take 402 away from 600, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

On to step 12:
When dividing 1980 by 402, we get 4 with a remainder of 372.
The number 4 becomes the next digit in our result. 
Result so far: 165303.2014
The remainder is 372 after subtracting 1608 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 13:
402 can be fit into 3720 9 times, resulting in a remainder of 102.
Use 9 as the next digit of our solution. 
Result so far: 165303.20149
Subtract 3618 from 3720 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 14:
402 can be fit into 1020 2 times, resulting in a remainder of 216.
Record the quotient 2 as the next digit in the result. 
Result so far: 165303.201492
Subtracting 804 from 1020 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 15:
The number 402 fits into 2160 5 times, leaving a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 165303.2014925
If we take 2010 away from 2160, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 16:
If we divide 1500 by 402, we get 3 and a remainder of 294.
Put 3 as the next digit of the answer. 
Result so far: 165303.20149253
Deduct 1206 from 1500 and we're left with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

The final result is 165303.20149253 with a remainder of 2.94e-07.