91677663 ÷ 680 
We want to figure out the number of times 91677663 can be divided by 680.

Let's proceed to step 1:
When dividing 9 by 680, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 680

Step 2:
When dividing 91 by 680, we get 0 with a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Append the next digit (6) from the dividend to 91 and continue with: 916 / 680

On to step 3:
680 goes into 916 1 times with a remainder of 236.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 236 after subtracting 680 from 916.
Append the next digit (7) from the dividend to 236 and continue with: 2367 / 680

Moving on to step 4:
680 goes into 2367 3 times with a remainder of 327.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 2040 away from 2367, we end up with 327.
Append the next digit (7) from the dividend to 327 and continue with: 3277 / 680

Moving on to step 5:
When dividing 3277 by 680, we get 4 with a remainder of 557.
The number 4 becomes the next digit in our result. 
Result so far: 134.0
Deduct 2720 from 3277 and we're left with 557.
Append the next digit (6) from the dividend to 557 and continue with: 5576 / 680

Let's proceed to step 6:
The number 680 fits into 5576 8 times, leaving a remainder of 136.
The number 8 becomes the next digit in our result. 
Result so far: 1348.0
If we subtract 5440 from 5576, we get 136.
Bring next digit (6) of the dividend behind the 136 and repeat the process: 1366 / 680

Let's proceed to step 7:
680 goes into 1366 2 times with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 13482.0
Subtracting 1360 from 1366 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 680

Moving on to step 8:
63 divided by 680 is 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 134820.0
Subtracting 0 from 63 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 9:
680 goes into 630 0 times with a remainder of 630.
Use 0 as the next digit of our solution. 
Result so far: 134820.0
The remainder is 630 after subtracting 0 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Let's proceed to step 10:
680 goes into 6300 9 times with a remainder of 180.
The number 9 becomes the next digit in our result. 
Result so far: 134820.09
Deduct 6120 from 6300 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 11:
When dividing 1800 by 680, we get 2 with a remainder of 440.
Use 2 as the next digit of our solution. 
Result so far: 134820.092
If we take 1360 away from 1800, we end up 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.

On to step 12:
680 goes into 4400 6 times with a remainder of 320.
Record the quotient 6 as the next digit in the result. 
Result so far: 134820.0926
If we subtract 4080 from 4400, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 13:
680 goes into 3200 4 times with a remainder of 480.
Record the quotient 4 as the next digit in the result. 
Result so far: 134820.09264
The remainder is 480 after subtracting 2720 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 14:
4800 divided by 680 is 7 with a remainder of 40.
The next digit of our result is 7. 
Result so far: 134820.092647
Deduct 4760 from 4800 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 15:
680 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 134820.092647
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 16:
When dividing 4000 by 680, we get 5 with a remainder of 600.
Use 5 as the next digit of our solution. 
Result so far: 134820.09264705
If we take 3400 away from 4000, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final outcome is 134820.09264705, with a leftover of 6e-07.