78002223 ÷ 428 
We want to figure out the number of times 78002223 can be divided by 428.

Going ahead to step 1:
7 divided by 428 is 0 with a remainder of 7.
The next digit of our result is 0. 
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 / 428

Let's proceed to step 2:
When dividing 78 by 428, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Fetch the next digit (0) from the dividend, attach it to 78 and continue: 780 / 428

On to step 3:
When dividing 780 by 428, we get 1 with a remainder of 352.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 428 from 780, we get 352.
Grab the next digit (0) from the dividend, add it to 352, then carry on: 3520 / 428

On to step 4:
3520 divided by 428 is 8 with a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we subtract 3424 from 3520, we get 96.
Bring next digit (2) of the dividend behind the 96 and repeat the process: 962 / 428

Moving on to step 5:
The number 428 fits into 962 2 times, leaving a remainder of 106.
The next digit of our result is 2. 
Result so far: 182.0
If we subtract 856 from 962, we get 106.
Grab the next digit (2) from the dividend, add it to 106, then carry on: 1062 / 428

Let's proceed to step 6:
The number 428 fits into 1062 2 times, leaving a remainder of 206.
Use 2 as the next digit of our solution. 
Result so far: 1822.0
Deduct 856 from 1062 and we're left with 206.
Append the next digit (2) from the dividend to 206 and continue with: 2062 / 428

Let's proceed to step 7:
If we divide 2062 by 428, we get 4 and a remainder of 350.
The number 4 becomes the next digit in our result. 
Result so far: 18224.0
Deduct 1712 from 2062 and we're left with 350.
Grab the next digit (3) from the dividend, add it to 350, then carry on: 3503 / 428

Let's proceed to step 8:
The number 428 fits into 3503 8 times, leaving a remainder of 79.
Record the quotient 8 as the next digit in the result. 
Result so far: 182248.0
If we subtract 3424 from 3503, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 9:
If we divide 790 by 428, we get 1 and a remainder of 362.
Use 1 as the next digit of our solution. 
Result so far: 182248.1
Subtracting 428 from 790 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

On to step 10:
When dividing 3620 by 428, we get 8 with a remainder of 196.
Record the quotient 8 as the next digit in the result. 
Result so far: 182248.18
Deduct 3424 from 3620 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 11:
1960 divided by 428 is 4 with a remainder of 248.
The next digit of our result is 4. 
Result so far: 182248.184
Deduct 1712 from 1960 and we're left with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Step 12:
428 goes into 2480 5 times with a remainder of 340.
Write down 5 as next digit of the result. 
Result so far: 182248.1845
If we take 2140 away from 2480, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 13:
When dividing 3400 by 428, we get 7 with a remainder of 404.
The number 7 becomes the next digit in our result. 
Result so far: 182248.18457
Subtracting 2996 from 3400 leaves us with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 14:
When dividing 4040 by 428, we get 9 with a remainder of 188.
Use 9 as the next digit of our solution. 
Result so far: 182248.184579
If we subtract 3852 from 4040, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 15:
428 can be fit into 1880 4 times, resulting in a remainder of 168.
The number 4 becomes the next digit in our result. 
Result so far: 182248.1845794
If we take 1712 away from 1880, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Advancing to step 16:
The number 428 fits into 1680 3 times, leaving a remainder of 396.
Put 3 as the next digit of the answer. 
Result so far: 182248.18457943
If we subtract 1284 from 1680, we get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

The final outcome is 182248.18457943, with a leftover of 3.96e-07.