80378001 ÷ 117 
We want to figure out the number of times 80378001 can be divided by 117.

Step 1:
When dividing 8 by 117, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 117

On to step 2:
80 divided by 117 is 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 117

Advancing to step 3:
The number 117 fits into 803 6 times, leaving a remainder of 101.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 702 from 803 to get 101.
Take the next digit (7) from the dividend and append it to 101, then repeat: 1017 / 117

Step 4:
117 can be fit into 1017 8 times, resulting in a remainder of 81.
Put 8 as the next digit of the answer. 
Result so far: 68.0
If we take 936 away from 1017, we end up with 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 117

Advancing to step 5:
When dividing 818 by 117, we get 6 with a remainder of 116.
Use 6 as the next digit of our solution. 
Result so far: 686.0
Deduct 702 from 818 and we're left with 116.
Append the next digit (0) from the dividend to 116 and continue with: 1160 / 117

Let's proceed to step 6:
117 goes into 1160 9 times with a remainder of 107.
The number 9 becomes the next digit in our result. 
Result so far: 6869.0
Subtract 1053 from 1160 to get 107.
Grab the next digit (0) from the dividend, add it to 107, then carry on: 1070 / 117

Advancing to step 7:
The number 117 fits into 1070 9 times, leaving a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 68699.0
Deduct 1053 from 1070 and we're left with 17.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 117

Advancing to step 8:
117 can be fit into 171 1 times, resulting in a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 686991.0
If we take 117 away from 171, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 9:
The number 117 fits into 540 4 times, leaving a remainder of 72.
The next digit of our result is 4. 
Result so far: 686991.4
If we subtract 468 from 540, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 10:
117 goes into 720 6 times with a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 686991.46
Subtract 702 from 720 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 11:
117 goes into 180 1 times with a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 686991.461
Deduct 117 from 180 and we're left 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.

On to step 12:
630 divided by 117 is 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 686991.4615
Subtracting 585 from 630 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 13:
117 can be fit into 450 3 times, resulting in a remainder of 99.
Write down 3 as next digit of the result. 
Result so far: 686991.46153
If we subtract 351 from 450, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Let's proceed to step 14:
When dividing 990 by 117, we get 8 with a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 686991.461538
Deduct 936 from 990 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 15:
The number 117 fits into 540 4 times, leaving a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 686991.4615384
Subtract 468 from 540 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 16:
When dividing 720 by 117, we get 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 686991.46153846
Deduct 702 from 720 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 686991.46153846, with a leftover of 1.8e-08.