66970520 ÷ 389 
We want to divide 66970520 by 389.

Moving on to step 1:
If we divide 6 by 389, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
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 / 389

Going ahead to step 2:
389 goes into 66 0 times with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Grab the next digit (9) from the dividend, add it to 66, then carry on: 669 / 389

Going ahead to step 3:
The number 389 fits into 669 1 times, leaving a remainder of 280.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 389 from 669, we get 280.
Take the next digit (7) from the dividend and append it to 280, then repeat: 2807 / 389

Going ahead to step 4:
When dividing 2807 by 389, we get 7 with a remainder of 84.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Subtracting 2723 from 2807 leaves us with 84.
Include the next digit (0) from the dividend after 84, then repeat: 840 / 389

Going ahead to step 5:
The number 389 fits into 840 2 times, leaving a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 172.0
The remainder is 62 after subtracting 778 from 840.
Grab the next digit (5) from the dividend, add it to 62, then carry on: 625 / 389

On to step 6:
625 divided by 389 is 1 with a remainder of 236.
Record the quotient 1 as the next digit in the result. 
Result so far: 1721.0
The remainder is 236 after subtracting 389 from 625.
Include the next digit (2) from the dividend after 236, then repeat: 2362 / 389

Advancing to step 7:
389 goes into 2362 6 times with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 17216.0
Deduct 2334 from 2362 and we're left with 28.
Include the next digit (0) from the dividend after 28, then repeat: 280 / 389

On to step 8:
When dividing 280 by 389, we get 0 with a remainder of 280.
Record the quotient 0 as the next digit in the result. 
Result so far: 172160.0
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 9:
389 goes into 2800 7 times with a remainder of 77.
The next digit of our result is 7. 
Result so far: 172160.7
Deduct 2723 from 2800 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 10:
The number 389 fits into 770 1 times, leaving a remainder of 381.
The next digit of our result is 1. 
Result so far: 172160.71
Subtracting 389 from 770 leaves us with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Step 11:
3810 divided by 389 is 9 with a remainder of 309.
Record the quotient 9 as the next digit in the result. 
Result so far: 172160.719
Subtract 3501 from 3810 to get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Going ahead to step 12:
If we divide 3090 by 389, we get 7 and a remainder of 367.
The next digit of our result is 7. 
Result so far: 172160.7197
Subtracting 2723 from 3090 leaves us with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Step 13:
389 goes into 3670 9 times with a remainder of 169.
The next digit of our result is 9. 
Result so far: 172160.71979
Subtracting 3501 from 3670 leaves us with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Let's proceed to step 14:
If we divide 1690 by 389, we get 4 and a remainder of 134.
The next digit of our result is 4. 
Result so far: 172160.719794
Deduct 1556 from 1690 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Advancing to step 15:
When dividing 1340 by 389, we get 3 with a remainder of 173.
Put 3 as the next digit of the answer. 
Result so far: 172160.7197943
If we subtract 1167 from 1340, we get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Going ahead to step 16:
If we divide 1730 by 389, we get 4 and a remainder of 174.
The next digit of our result is 4. 
Result so far: 172160.71979434
Subtracting 1556 from 1730 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

The quotient of the division is 172160.71979434, and the remainder is 1.74e-07.