Let's divide 66276513 by 420
We're looking to find how many times 420 goes into 66276513.

Advancing to step 1:
If we divide 6 by 420, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 420

Going ahead to step 2:
66 divided by 420 is 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (2) from the dividend to 66 and continue with: 662 / 420

Advancing to step 3:
420 can be fit into 662 1 times, resulting in a remainder of 242.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 242 after subtracting 420 from 662.
Take the next digit (7) from the dividend and append it to 242, then repeat: 2427 / 420

Moving on to step 4:
The number 420 fits into 2427 5 times, leaving a remainder of 327.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 2100 from 2427 and we're left with 327.
Bring next digit (6) of the dividend behind the 327 and repeat the process: 3276 / 420

Let's proceed to step 5:
3276 divided by 420 is 7 with a remainder of 336.
Record the quotient 7 as the next digit in the result. 
Result so far: 157.0
If we subtract 2940 from 3276, we get 336.
Grab the next digit (5) from the dividend, add it to 336, then carry on: 3365 / 420

Moving on to step 6:
When dividing 3365 by 420, we get 8 with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 1578.0
Subtract 3360 from 3365 to get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 420

Moving on to step 7:
51 divided by 420 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 15780.0
Subtract 0 from 51 to get 51.
Take the next digit (3) from the dividend and append it to 51, then repeat: 513 / 420

Going ahead to step 8:
513 divided by 420 is 1 with a remainder of 93.
Put 1 as the next digit of the answer. 
Result so far: 157801.0
If we take 420 away from 513, we end up with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 9:
When dividing 930 by 420, we get 2 with a remainder of 90.
Write down 2 as next digit of the result. 
Result so far: 157801.2
The remainder is 90 after subtracting 840 from 930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 10:
When dividing 900 by 420, we get 2 with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 157801.22
The remainder is 60 after subtracting 840 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 157801.22 with a remainder of 0.06.