7990667 ÷ 486 
Let's see how many times 486 fits into 7990667.

Let's proceed to step 1:
The number 486 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 486

Advancing to step 2:
When dividing 79 by 486, we get 0 with a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Append the next digit (9) from the dividend to 79 and continue with: 799 / 486

Moving on to step 3:
486 can be fit into 799 1 times, resulting in a remainder of 313.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 486 from 799 leaves us with 313.
Fetch the next digit (0) from the dividend, attach it to 313 and continue: 3130 / 486

Advancing to step 4:
If we divide 3130 by 486, we get 6 and a remainder of 214.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 2916 away from 3130, we end up with 214.
Fetch the next digit (6) from the dividend, attach it to 214 and continue: 2146 / 486

Step 5:
When dividing 2146 by 486, we get 4 with a remainder of 202.
Put 4 as the next digit of the answer. 
Result so far: 164.0
Subtracting 1944 from 2146 leaves us with 202.
Take the next digit (6) from the dividend and append it to 202, then repeat: 2026 / 486

Let's proceed to step 6:
486 goes into 2026 4 times with a remainder of 82.
Put 4 as the next digit of the answer. 
Result so far: 1644.0
Subtract 1944 from 2026 to get 82.
Take the next digit (7) from the dividend and append it to 82, then repeat: 827 / 486

Going ahead to step 7:
486 goes into 827 1 times with a remainder of 341.
Use 1 as the next digit of our solution. 
Result so far: 16441.0
Subtracting 486 from 827 leaves us with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Advancing to step 8:
The number 486 fits into 3410 7 times, leaving a remainder of 8.
The next digit of our result is 7. 
Result so far: 16441.7
If we subtract 3402 from 3410, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
When dividing 80 by 486, we get 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 16441.7
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 10:
When dividing 800 by 486, we get 1 with a remainder of 314.
Record the quotient 1 as the next digit in the result. 
Result so far: 16441.701
Subtracting 486 from 800 leaves us with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Let's proceed to step 11:
486 goes into 3140 6 times with a remainder of 224.
Record the quotient 6 as the next digit in the result. 
Result so far: 16441.7016
If we take 2916 away from 3140, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 12:
If we divide 2240 by 486, we get 4 and a remainder of 296.
The next digit of our result is 4. 
Result so far: 16441.70164
If we subtract 1944 from 2240, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 13:
When dividing 2960 by 486, we get 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 16441.701646
Subtracting 2916 from 2960 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 14:
When dividing 440 by 486, we get 0 with a remainder of 440.
Record the quotient 0 as the next digit in the result. 
Result so far: 16441.701646
Deduct 0 from 440 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 15:
4400 divided by 486 is 9 with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 16441.70164609
If we subtract 4374 from 4400, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 16441.70164609 with a balance of 2.6e-08.