1578637 ÷ 422 
We want to figure out the number of times 1578637 can be divided by 422.

Moving on to step 1:
422 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 422

Going ahead to step 2:
422 goes into 15 0 times with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Grab the next digit (7) from the dividend, add it to 15, then carry on: 157 / 422

On to step 3:
The number 422 fits into 157 0 times, leaving a remainder of 157.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 157, we get 157.
Fetch the next digit (8) from the dividend, attach it to 157 and continue: 1578 / 422

On to step 4:
1578 divided by 422 is 3 with a remainder of 312.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 1266 from 1578 and we're left with 312.
Append the next digit (6) from the dividend to 312 and continue with: 3126 / 422

Advancing to step 5:
3126 divided by 422 is 7 with a remainder of 172.
The next digit of our result is 7. 
Result so far: 37.0
Subtracting 2954 from 3126 leaves us with 172.
Fetch the next digit (3) from the dividend, attach it to 172 and continue: 1723 / 422

Advancing to step 6:
If we divide 1723 by 422, we get 4 and a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 374.0
Deduct 1688 from 1723 and we're left with 35.
Include the next digit (7) from the dividend after 35, then repeat: 357 / 422

Advancing to step 7:
422 goes into 357 0 times with a remainder of 357.
The next digit of our result is 0. 
Result so far: 3740.0
Deduct 0 from 357 and we're left with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Let's proceed to step 8:
The number 422 fits into 3570 8 times, leaving a remainder of 194.
The number 8 becomes the next digit in our result. 
Result so far: 3740.8
Deduct 3376 from 3570 and we're left with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 9:
1940 divided by 422 is 4 with a remainder of 252.
Record the quotient 4 as the next digit in the result. 
Result so far: 3740.84
The remainder is 252 after subtracting 1688 from 1940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Advancing to step 10:
When dividing 2520 by 422, we get 5 with a remainder of 410.
Put 5 as the next digit of the answer. 
Result so far: 3740.845
Subtract 2110 from 2520 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 11:
4100 divided by 422 is 9 with a remainder of 302.
The number 9 becomes the next digit in our result. 
Result so far: 3740.8459
Subtract 3798 from 4100 to get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

On to step 12:
When dividing 3020 by 422, we get 7 with a remainder of 66.
Record the quotient 7 as the next digit in the result. 
Result so far: 3740.84597
Subtracting 2954 from 3020 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 13:
The number 422 fits into 660 1 times, leaving a remainder of 238.
Use 1 as the next digit of our solution. 
Result so far: 3740.845971
If we subtract 422 from 660, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 14:
422 can be fit into 2380 5 times, resulting in a remainder of 270.
Put 5 as the next digit of the answer. 
Result so far: 3740.8459715
Subtracting 2110 from 2380 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

On to step 15:
If we divide 2700 by 422, we get 6 and a remainder of 168.
Use 6 as the next digit of our solution. 
Result so far: 3740.84597156
If we take 2532 away from 2700, 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.

After the division, we end up with 3740.84597156 and a remainder of 1.68e-07.