6442607 ÷ 158 
We want to divide 6442607 by 158.

On to step 1:
158 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 158

Step 2:
When dividing 64 by 158, we get 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 158

On to step 3:
When dividing 644 by 158, we get 4 with a remainder of 12.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 632 from 644, we get 12.
Take the next digit (2) from the dividend and append it to 12, then repeat: 122 / 158

Moving on to step 4:
The number 158 fits into 122 0 times, leaving a remainder of 122.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Deduct 0 from 122 and we're left with 122.
Include the next digit (6) from the dividend after 122, then repeat: 1226 / 158

Step 5:
The number 158 fits into 1226 7 times, leaving a remainder of 120.
Use 7 as the next digit of our solution. 
Result so far: 407.0
The remainder is 120 after subtracting 1106 from 1226.
Bring next digit (0) of the dividend behind the 120 and repeat the process: 1200 / 158

Moving on to step 6:
158 goes into 1200 7 times with a remainder of 94.
The next digit of our result is 7. 
Result so far: 4077.0
If we subtract 1106 from 1200, we get 94.
Fetch the next digit (7) from the dividend, attach it to 94 and continue: 947 / 158

Going ahead to step 7:
When dividing 947 by 158, we get 5 with a remainder of 157.
Use 5 as the next digit of our solution. 
Result so far: 40775.0
If we take 790 away from 947, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 8:
1570 divided by 158 is 9 with a remainder of 148.
Put 9 as the next digit of the answer. 
Result so far: 40775.9
If we take 1422 away from 1570, we end up with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 9:
When dividing 1480 by 158, we get 9 with a remainder of 58.
The next digit of our result is 9. 
Result so far: 40775.99
If we take 1422 away from 1480, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 40775.99, with a leftover of 0.058.