78446079 ÷ 438 
We're looking to find how many times 438 goes into 78446079.

Step 1:
When dividing 7 by 438, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 438

Moving on to step 2:
78 divided by 438 is 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Take the next digit (4) from the dividend and append it to 78, then repeat: 784 / 438

Moving on to step 3:
When dividing 784 by 438, we get 1 with a remainder of 346.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 346 after subtracting 438 from 784.
Take the next digit (4) from the dividend and append it to 346, then repeat: 3464 / 438

On to step 4:
438 can be fit into 3464 7 times, resulting in a remainder of 398.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtracting 3066 from 3464 leaves us with 398.
Include the next digit (6) from the dividend after 398, then repeat: 3986 / 438

Going ahead to step 5:
438 goes into 3986 9 times with a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 179.0
Subtract 3942 from 3986 to get 44.
Take the next digit (0) from the dividend and append it to 44, then repeat: 440 / 438

Advancing to step 6:
When dividing 440 by 438, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1791.0
Subtracting 438 from 440 leaves us with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 438

Let's proceed to step 7:
438 goes into 27 0 times with a remainder of 27.
The next digit of our result is 0. 
Result so far: 17910.0
Deduct 0 from 27 and we're left with 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 438

Step 8:
When dividing 279 by 438, we get 0 with a remainder of 279.
The next digit of our result is 0. 
Result so far: 179100.0
If we subtract 0 from 279, we get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Let's proceed to step 9:
If we divide 2790 by 438, we get 6 and a remainder of 162.
Record the quotient 6 as the next digit in the result. 
Result so far: 179100.6
Deduct 2628 from 2790 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 10:
438 goes into 1620 3 times with a remainder of 306.
Use 3 as the next digit of our solution. 
Result so far: 179100.63
If we take 1314 away from 1620, we end up with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Advancing to step 11:
438 goes into 3060 6 times with a remainder of 432.
Record the quotient 6 as the next digit in the result. 
Result so far: 179100.636
If we subtract 2628 from 3060, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Step 12:
If we divide 4320 by 438, we get 9 and a remainder of 378.
The number 9 becomes the next digit in our result. 
Result so far: 179100.6369
If we take 3942 away from 4320, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Advancing to step 13:
If we divide 3780 by 438, we get 8 and a remainder of 276.
The next digit of our result is 8. 
Result so far: 179100.63698
If we take 3504 away from 3780, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Moving on to step 14:
2760 divided by 438 is 6 with a remainder of 132.
The next digit of our result is 6. 
Result so far: 179100.636986
Deduct 2628 from 2760 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Advancing to step 15:
If we divide 1320 by 438, we get 3 and a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 179100.6369863
If we take 1314 away from 1320, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 16:
60 divided by 438 is 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 179100.6369863
If we subtract 0 from 60, we get 60.
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 179100.6369863 with a remainder of 6e-08.